Sara Mujica said she believes she was infected in February while visiting her fiance in Honduras. She started showing symptoms of the virus just days after learning she was pregnant.
"I had a fever," she told ABC News. "And the rashes were just growing throughout my body."
Fever and rashes are two of Zika's most common signs and symptoms.
Mujica then traveled to Connecticut and rushed to get tested. With the results weeks away, she went back to Honduras to be with her fiance.
Then, her mother called "crying hysterically," Mujica told ABC News. "She was like, 'your blood work got back and you were positive for Zika.'"
"It's really heartbreaking knowing that I got Zika," she said.
"It's a hard decision when something so tragic happens," she said.
Zika is primarily spread through mosquito bites.
While so far there have been no locally transmitted Zika cases in the continental United States, Mujica is now one of 44 pregnant women in the U.S. who have tested positive for Zika after traveling outside the country.
The Connecticut Department of Health said in a statement to ABC News, "We have been preparing for months both to address positive cases and put measures in place to help prevent mosquito-related transmission."
"We want them to avoid traveling to countries with Zika and make sure they know about prevention of mosquito bites," Skinner said.
ABC News' Shaun Francis contributed to this report.