Brownsville, Texas CNN  — 

Diocelina Querales cranes her neck as she tries to catch a glimpse of the faces behind the tinted windows of a bus that just rumbled in.

In a matter of moments, she shakes her head.

“Nada,” she says. Nothing.

Only men are on this bus that’s just arrived from a US Customs and Border Protection facility; her daughter-in-law and granddaughters aren’t.

Querales, 50, has been hovering around this street corner near Brownsville’s bus station for days, searching for them.

She says she crossed the Rio Grande with 10 other family members earlier this week. Some clung to an inflatable mattress. Others swam. All of them worried this could be their last chance to make it into the United States.

Maya Blackstone/CNN
Diocelina Querales checks her phone for messages from family members

When they reached the other side of the river together, Querales says they felt elated and breathed a deep sigh of relief. They were among the thousands who’ve crossed in recent days as fear over policy changes at the border fueled a spike in the number of migrants who took their chances crossing the Rio Grande before Title 42 expired.

But Querales’ family wasn’t together for much longer.

And she soon found herself among many migrants who’ve recently arrived in this border city, confused and uncertain about what’s next.

While politicians and pundits debate border policies on the national stage, emotions are running high for migrants sorting out their next steps near Brownsville’s bus station. Some are searching for loved ones. Others are lining up to buy bus tickets or working to earn money to reach their next destinations.

The vast majority of them are from the same place – a fact that isn’t lost on Querales as she surveys the scene on Thursday.

“Venezuela was left empty,” she says as she looks at the crowd of people waiting on the sidewalk beside her.

A pastor helping migrants sees himself in their faces

Pastor Carlos Navarro drives down the streets of Brownsville with the windows of his church van rolled down.

As soon as Navarro spots a group of people walking with blue tote bags slung over their shoulders, he shouts out words of welcome: “Bienvenido a los Estados Unidos!”

The tote bags are given to migrants when they arrive at Brownsville’s welcome center after being released from Customs and Border Protection custody. Navarro knows without asking why these migrants are here, and what country they’re likely to be from.

“What part of Venezuela?” he asks as he drives past.

“Maracaibo!” a man responds gleefully, looking surprised. Navarro sings a refrain from a beloved song about the Venezuelan city.

Jeremy Moorhead/CNN
Pastor Carlos Navarro, who came to the United States from Guatemala in 1982, says he sees himself in the migrants who've recently arrived in his city.

For years the church Navarro leads, Iglesia Bautista West Brownsville, has been offering aid to migrants after they cross the US-Mexico border. It hasn’t always been easy; Navarro says one time protesters picketed outside his church when they learned about its humanitarian work, accusing him of encouraging illegal immigration.

But Navarro says he’s committed to helping the new arrivals, who he points out have been released from custody by authorities and given permission to remain in the United States to make their cases in immigration court. He sees assisting them as an important opportunity to spread his faith. And he also sees himself in them.

Navarro fled to the United States in 1982 after a military coup in Guatemala.

“I understand the context and I understand the background, what they’re leaving, why they’re leaving, why they’re coming, and what their aim (is) when coming here to the States,” he says. “I understand … not taking a shower for two or three days or four days, no shoes, no underwear. I see that. I was there. I was on the other side.”

Navarro sees the exhaustion on many migrants’ faces when he helps distribute donations in downtown Brownsville. And he’s doing what he can to brighten their spirits.

Maya Blackstone/CNN
Pastor Carlos Navarro of Iglesia Batista West Brownsville poses with a group of Venezuelan migrants who've just arrived in his city.

Today he’s passing out Bibles as volunteers from his church distribute lunches. And he waves a large Venezuelan flag as he makes announcements to the group. The crowd roars with applause and laughter.

Brownsville began to see arrivals starting to spike as desperation and confusion spread about two weeks before Title 42 was lifted, according to Navarro. The pastor says in recent days he’s seen more migrants than ever arriving in his city.

Normally, volunteers distribute lunches in this tree-filled plaza for the city’s homeless population. But now, Navarro says, there are even more people who’ve come seeking help.

“There’s a new term in this city,” Navarro says. “Homeless migrant.”

She was shocked to learn her daughter had been sent back to Mexico

Diocelina Querales is one of them, though she hopes not to be for long.

She’s been spending the night on sidewalks here since her release from immigration custody on Tuesday.

Querales, like many of the migrants who spoke with CNN in Brownsville, says devastating economic conditions are among the factors that forced her to leave Venezuela. She worked for years as a gym teacher, then turned to selling what she could to make ends meet, then to taking care of others’ children. But it wasn’t enough to get by, she says.

“There if we work, we work only to eat. We don’t have enough to buy ourselves a pair of shoes. … That’s why we are coming here,” she says. “Because we know that here you can survive. Here you can live well.”

Now that she’s made it to the United States, Querales doesn’t have enough money to buy a bus ticket to join her son in Chicago.

But at this point, even if she did, she wouldn’t go.

The days since her arrival on US soil haven’t gone how she expected. She’s already learned firsthand how swiftly people from the same family can meet different fates in the US immigration system.

As soon as she got her phone back from immigration authorities when she was released, Querales made a video call.

Jeremy Moorhead/CNN
Brownsville Mayor Trey Mendez thanks Iglesia Bautista West Brownsville Pastor Carlos Navarro and volunteers preparing food for the growing number of migrants arriving in his city.

On her phone’s screen, she saw her 23-year-old daughter Angie crying. Angie and her 2-year-old son Fabian had been sent back to Mexico.

For weeks, Querales had made a point of staying strong to encourage her own mother and other family members to push through on the difficult and dangerous trek from Venezuela. When she learned in Brownsville days after they’d crossed the border together that her daughter and grandson had been deported, Querales started sobbing so loudly that others in the street stopped to listen and offer their support.

“The tears came out,” she says, “and people cried with me.”

Querales says she’s still struggling to understand what happened as her daughter and grandson now wait in Matamoros, Mexico, trying to get an appointment to cross the border at a port of entry using the app officials are encouraging migrants to use.

“People went crazy crossing, crossing, and for nothing, because they are sending people back. How is it possible that they are sending back a mother with a child? They shouldn’t do that,” she says.

Querales has reunited with several other family members who were released from custody. Her mother and brother have been waiting with her.

Maya Blackstone/CNN
Diocelina Querales has been keeping watch for other family members to arrive in Brownsville with her mother, Diana, and brother, Francisco.

But as time passes, she’s becoming increasingly afraid her daughter-in-law and granddaughters could be sent back, too.

On Friday, she says she still hasn’t heard from them since they turned themselves in to immigration authorities after crossing the border five days earlier. And she worries shifting US policies could affect their case.

“So many things run through your mind,” she says.

With no way to reach them, Querales says she’s determined to keep waiting for her missing family members to arrive on a bus in Brownsville.

“I have to have faith,” she says. “They are going to come.”

She says crossing the border is like a game of roulette

On the street where Querales has been waiting for word of her loved ones, other migrants swap similar stories.

“Who are you waiting for?” is a common refrain.

CNN has reached out to US Customs and Border Protection about why some migrants released in Brownsville this week are reporting being separated from adult family members in custody, and how common or widespread the practice is.

An agency policy states that officials “will maintain family unity to the greatest extent operationally feasible, absent a legal requirement or an articulable safety or security concern that requires separation.”

00:55 - Source: CNN
'We can sleep on the street': Migrants rush across US border before policy changes

“This whole area would be empty if they weren’t doing this separation,” says Macbeth Montilla, 46, who says she lost contact with her longtime partner Arturo after they crossed the border and turned themselves in to authorities. They weren’t legally married, she says, but lived together as husband and wife in Venezuela for 13 years. For days she’s been searching for him.

“We stand here to see who’s coming, asking with a photo of him. ‘Have you seen him? Have you seen him?’” she says. “This is what it’s like all day.”

Across the street is a 33-year-old mother who arrived in Brownsville with her three daughters and successfully reunited with several other family members here after they were released from custody this week.

She says crossing the US-Mexico border is like a game of roulette. Some are allowed to stay, she says, while others are sent back.

Karen, who asked to be identified only by her first name because she’s seeking political asylum and says she faced persecution in Venezuela, says she knows she and her family had no choice but to leave their country.

“I did it for my children’s future,” she says. “Maybe I won’t be anybody, but they will.”

Soon they’ll head to Seattle, a location she says she picked because she expects there to be fewer Venezuelan migrants there competing for resources and jobs.

Karen imagines her daughters – aged 14, 12 and 9 – becoming artists, models or scientists someday. Anything is possible, she says, now that they’re in the United States.

But even here, the dangers of the journey still are all too present.

Last night, shortly after they arrived, she realized her family was staying in the same shelter that had housed the eight migrants who were killed earlier this week when a Range Rover plowed into them as they waited at a bus stop.

“We were scared,” she says. “I couldn’t sleep.”

She tries to comfort her daughter who was deported

The first day Diocelina Querales waited on this street corner for her family members, buses were arriving every few hours.

But now that Title 42 has ended, it seems like far fewer buses are coming. Querales has been fearing the worst.

Jose Luis Gonzalez/Reuters
Migrants cross the Rio Bravo to return to Ciudad Juárez, Mexico, on Saturday, May 13, as members of the Texas National Guard extend razor wire at the border.
Adrees Latif/Reuters
Alison, a 6-year-old migrant from Honduras, stands with her mother while they wait to be transported to a US Border Patrol processing facility in La Joya, Texas, on May 13.
Andrew Caballero-Reynolds/AFP/Getty Images
US Border Patrol agents watch over migrants waiting to take a bus to a processing center in Fronton, Texas, on Friday, May 12. The migrants had turned themselves in after crossing from Mexico.
Todd Heisler/The New York Times/Redux
A group of men from El Salvador are detained by US Border Patrol agents after crossing the border near Sunland Park, New Mexico, on May 12.
Gregory Bull/AP
Migrants waiting to apply for asylum near San Diego reach through a border wall for clothing handed out by volunteers on May 12.
Todd Heisler/The New York Times/Redux
A US Border Patrol agent searches a man from Mexico who crossed the border illegally near Sunland Park on May 12.
Veronica G. Cardenas/The New York Times/Redux
Ligia Garcia and her husband, Robert Castellon, walk with their children to buy food after they were processed by US border officials in McAllen, Texas, on May 12.
Gregory Bull/AP
Paula, a woman from Guatemala, holds her daughter as she asks US border officials about the new asylum rules at the San Ysidro Port of Entry, between San Diego and Tijuana, Mexico, on Thursday, May 11.
Daniel Becerril/Reuters
Migrants in Matamoros, Mexico, gather on the banks of the Rio Grande as they get ready to cross the border to turn themselves in on May 11.
Todd Heisler/The New York Times/Redux
Merejido Del Orbe, who came to the United States from the Dominican Republic, rests at Annunciation House, a shelter in El Paso, Texas, on May 11. He broke his leg when he slipped from a rope while climbing a border fence in April.
Daniel Becerril/Reuters
Texas National Guard soldiers place more razor wire on the banks of the Rio Grande in Matamoros on May 11.
Adriana Zehbrauskas/The New York Times/Redux
Migrants from Peru react after crossing the border in Yuma, Arizona, just a few minutes before the lifting of Title 42 on May 11.
Andres Leighton/AP
As the sun sets on May 11, migrants wait to be processed by US Border Patrol agents across the border from El Paso.
Adriana Zehbrauskas/The New York Times/Redux
Migrants released by US border officials are seen at a cell phone charging station at the Regional Center for Border Health in Somerton, Arizona, on May 11.
Eric Thayer/Bloomberg/Getty Images
Migrants surrender to the US Border Patrol in Yuma on May 11.
Adriana Zehbrauskas/The New York Times/Redux
Erick Torres and his son Benjamin, migrants from Peru, wait to be processed by US Border Patrol agents in Yuma on May 11.
Meridith Kohut/The New York Times/Redux
Migrants climb onto an air mattress in Matamoros to prepare to cross the Rio Grande toward Brownsville, Texas, on May 11.
Eric Thayer/Bloomberg/Getty Images
Migrants board a bus after surrendering to US Border Patrol agents in Yuma on May 11.
Gregory Bull/AP
A US Border Patrol agent looks on as migrants wait to apply for asylum near San Diego on May 11.
Gary Coronado/Los Angeles Times/Getty Images
Norma Garcia Bonilla, from Michoacán, Mexico, waits at Albergue del Desierto, a migrant shelter in Mexicali, Mexico, across from the California border, on Wednesday, May 10. She is seeking asylum in the United States.
David Peinado Romero/Anadolu Agency/Getty Images
Hundreds of migrants in Ciudad Juárez wait to cross into the United States on May 10.
Fernando Llano/AP
Migrants carry a baby in a suitcase across the Rio Grande on May 10.
Mike Blake/Reuters
A migrant tears up behind a border wall near San Diego on May 10.
Joe Raedle/Getty Images
Members of the Texas National Guard are deployed to an area of high migrant crossings in Brownsville on May 10.
Gary Coronado/Los Angeles Times/Getty Images
Wendy Velasquez and her 21-month-old daughter, Starley Dominguez Velasquez, have been living for five months at the Albergue del Desierto migrant shelter in Mexicali. They came from Honduras to apply for asylum in the United States.
Andrew Caballero-Reynolds/AFP/Getty Images
Migrants wait to get paid after washing cars at a gas station in Brownsville on May 10. They had arrived the day before from Mexico.
Eric Thayer/Bloomberg/Getty Images
Migrants surrender to US Border Patrol agents after crossing the border in Yuma on May 10.
Alfredo Estrella/AFP/Getty Images
Migrants cross the Rio Grande from Matamoros on May 10.
Mike Blake/Reuters
Migrants gather between primary and secondary border fences near San Diego on May 10.
Joe Raedle/Getty Images
Migrants stand in line as they wait to be processed by US Border Patrol agents in Brownsville on May 10.
Guillermo Arias/AFP/Getty Images
A migrant climbs over a border wall separating Tijuana from the United States after fetching groceries for other migrants who were waiting to be processed by US authorities on May 10.
Fernando Llano/AP
A heart-shaped keychain with a photo of Salvadoran migrant Danilo Ruiz and his family hangs from a handbag at a makeshift shelter in Reynosa, Mexico, on Tuesday, May 9.
John Moore/Getty Images
Migrant families cross into El Paso from Mexico on May 8.
Mike Blake/Reuters
A US Border Patrol agent watches over migrants who had gathered in San Diego on May 8.
Evelio Contreras/CNN
A woman is helped off a freight train after she became too scared to climb down from the roof on May 7. Migrants have been traveling on top of freight trains as they headed north from southern Mexico. The woman's son, Leonardo Luzardo, told CNN it had been a long, cold night atop the train, feeling like their bodies were turning to ice. "It seemed like we were going to freeze," he said.
Veronica G. Cardenas/AP
Migrants who were trying to evade US Border Patrol agents wait to be processed in Granjeno, Texas, on May 4.
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Children play soccer at a shelter in Tijuana on May 3. Their families were awaiting the end of Title 42.
Paul Ratje/Reuters
Migrants camp out in an alley behind the Sacred Heart Church in downtown El Paso on April 30.
Paul Ratje/Reuters
Migrants wait to be processed by US Border Patrol agents in Santa Teresa, New Mexico, on April 26.

But on Saturday morning, nearly a week after she reached the United States and lost contact with many members of her family, Querales received some good news: Authorities contacted her son and said her daughter-in-law and grandchildren are being processed for release.

It’s a welcome relief after days of distress, Querales says. But still, she doesn’t know when her family will be together again.

As Querales has been keeping watch for new buses arriving in Brownsville, her daughter has been calling from the other side of the border, crying.

Querales tries to comfort her and make her laugh.

“I tell her that things happen for a reason,” she says.

But when Querales hangs up the phone, she cries, too.

CNN’s Maya Blackstone and Jeremy Moorhead contributed to this report.