Jessa's Pregnancy Secrets Revealed: Duggar Daughter & Hubby Ben Seewald Just Heard Heartbeat For First Time, Will Find Out Baby's Sex Next Month!

After Jessa Duggar and husband Ben Seewald announced they're expecting their first child this fall, Duggar devotees have been desperate for more baby news.

Now RadarOnline.com can reveal that the 22-year-old 19 Kids And Counting star and her hubby, 19, spilled some secrets to fans they encountered yesterday while filming at the Cross Church Compassion Center in Springdale, Arkansas.

"We heard the baby's heartbeat for the first time today!" an elated Duggar told a group of University of Arkansas sorority girls.

"At first they couldn't hear the heart beat, the baby wasn't turned the right way or something like that," Seewald explained.

Duggar then went on to tell the students that the couple is planning to find out the baby's sex in May— but unlike her big sister, new mom Jill, they don't want to host a big gender reveal party.

"We're actually thinking about keeping it a secret, like just Ben and I know, but we're not sure," she said.

Last week, Duggar and Seewald finally opened up about their suspected pregnancy to People magazine.

"We are so excited!" she gushed.