Credit: Kevin Mazur/Wire Image

Birthday girl Mariah Carey almost got an extra special gift Saturday night!

The singer, who's expecting twins with husband Nick Cannon next month, sought medical attention after starting premature labor.

"So #dembabies really wanted 2 celebrate w/us/share the anniversary!" she wrote on her Twitter page. "I started having contractions last night..went 2 the hospital. Finally they said I could come home after they got it under control. but hey almost came on 3/27- happy anniversary in deed!!!"

Claiming she still had two weeks until her due date, Carey added, "soreadyallready!"

Hopefully the practice run was good for Cannon, who earlier this week tweeted that he was taking fatherhood advice from listeners of his radio show.

"I am probably going to faint in the delivery room! I need to man up!" he wrote. "I'm trying to prepare but I get queezy in Hospitals LOL."