Kevin and Danielle Jonas are getting ready for parenthood.

While promoting his band’s new single First Time with brothers Nick and Joe Thursday afternoon at Z100 in New York City, Kevin revealed that wife is getting her bearings back from a tough first trimester.

“The nausea has finally subsided,” Kevin said. “Danielle’s feeling much better now in the last couple of days, which is a really big step. She’s not sick anymore.”

Kevin has been showering his wife with extra surprises, since they announced their baby news.

He is “sending her flowers, making her feel appreciated,” he said, “and just doing as much as I can to be with her.”

The Married to Jonas star is having pregnancy cravings for something surprisingly healthy: grapes. “She can’t stop eating them — like nonstop,” Kevin revealed.

On July 9, the couple -- who married in December 2009 -- announced they were expecting their first child.

“Dani and Kevin are thrilled that Dani is pregnant with their first child. They are, of course, elated, and so excited to share this news with their fans,” the rep told PEOPLE. “They are very much looking forward to building a family together.”

“It’s true – Danielle is pregnant! Can’t even imagine how excited we are,” the musician tweeted. “I can’t wait to share this with my best friend. I love you baby.”