The Supreme Court upheld birthright citizenship in a 6-3 ruling Tuesday, rejecting President Donald Trump's executive order that tried to end citizenship for children born in the United States to parents without legal status or temporary permission.

The decision is hitting close to home for families in the Rio Grande Valley.

READ MORE: Supreme Court upholds birthright citizenship, rejecting Trump's proposed limits

A pregnant woman from San Benito says the ruling brings her hope. Channel 5 News is not identifying her for her safety.

Marisol is five months pregnant with her third child. She is undocumented and originally from Tamaulipas, Mexico. She is already raising two U.S. citizen children.

"I'm happy and cheerful, even though it was really hard for us," Marisol said of the Supreme Court ruling.

Marisol said the uncertainty gripped her family immediately after Trump signed the executive order on the first day of his second term.

"I have a 10-month-old baby—that's when it all started," Marisol said. "Just as I was starting to feel better, they were talking about taking away his citizenship, and I was worried about what was going to happen."

For her, the ruling goes beyond policy.

"It's the best thing that could have happened to my children, because given the situation in Mexico, we're fleeing from there too — from the violence… so that our children can succeed and have a bright future," Marisol said.

Advocates say the ruling brings relief but does not erase the fear many immigrant families feel. Organizations like La Union del Pueblo Entero are continuing their work in communities across the Valley.

"We had a sigh of relief, and we also know that the fight is not over," LUPE Director of Civic Engagement Michael Mireles said. "We know that the Valley is made up of mixed-status households. There's not a single person here that I know of who doesn't have either an immigrant relative, or who themselves is an immigrant. So this was a really important decision today for those folks."

Mireles said families should continue staying informed as the situation continues to develop.

"We want people to feel safe. And I think the only way that we can do that in this administration is if people are up to date with their immigration status," Mireles said.

Marisol said she now has a message for other mothers who have been living with the same fear.

"Don't lose faith; keep fighting here," Marisol said.

Watch the video above for the full story.