updated 01/10/2011 AT 6:00 PM ET
•originally published 01/11/2011 AT 8:00 AM ET
It was on the first day of her job as the co-host of Bravo’s upcoming new reality show Going Platinum that Jewel received the happy news.
“I took a pregnancy test and it was positive!” the singer, 36, tells PEOPLE. “It was so hard to keep it a secret. I was worried I’d start throwing up on set and everyone would be like, ‘Oh, she’s pregnant.’ ”
Now in her second trimester, Jewel and her husband, rodeo star Ty Murray, are finally ready to share their happy news.