Carrie Prejean

Former Miss California USA Carrie Prejean and her husband, Oakland Raiders quarterback Kyle Boller, are expecting their first child.

"We are just so excited," Prejean told FOX411.com. "I'm due in May on my grandmother's birthday. She recently passed away, so that's very special to us."

Carrie Prejean marries NFL quarterback

Prejean, 23, and Boller, 29, married in July. She said they started trying for a baby a month later.

"I'm trying to stay healthy, but it has been tough. I've been getting night sickness," she said. "We've started thinking about names, but we are keeping it to ourselves for right now. It has been fun looking at baby books."

The beauty queen is three months along, and the couple plans to find out the sex of their baby next week.

Watch Prejean's controversial gay marriage answer at Miss USA

"I have the most beautiful pregnant wife ever, we are so in love and this was just the best news when we found out a couple of weeks ago," Boller said.

Prejean gained national attention in April 2009 when she shared her conservative stance on same-sex marriage during the Miss USA pageant. She was stripped of her state title for breach of contract two months later.