Maxwell Drew Johnson: Jessica Simpson, Eric Johnson Welcome Baby Girl

It's official: Jessica Simpson is a mom! The singer and her fiance Eric Johnson welcomed a baby girl named Maxwell Drew Johnson on May 1, Us Weekly confirms.

"We are so grateful for all the love, support and prayers we have received. This is been the greatest experience of our lives," the singer posted on her website Tuesday, announcing the birth of baby Maxwell.

Though they've been engaged over a year, the wedding hasn't happened just yet. Simpson and her husband-to-be put their wedding plans on the back burner for now, especially after it was fairly obvious that Simpson was pregnant last fall. After many weeks of speculation, Simpson took to her website to officially announce that yes, she was going to be a mom.

"It's True! I am going to be a mummy," she wrote, posting a photo of herself dressed as a mummy -- it was Halloween, after all -- and holding her stomach.

After revealing her happy news, Simpson was fairly open about her pregnancy, telling People she loved being pregnant.

"I can't wait to have more kids," she said in November. "I love being pregnant. I have such an incredible connection with myself and with my body that I've never had before."

That was pretty evident when she posed nude -- and very pregnant -- on the cover of Elle's April issue, and revealed she and Johnson were expecting a baby girl.

Congrats to the happy family!

Check out photos of Simpson throughout her pregnancy below:

Jessica Simpson's Baby Bump