Mariah Carey almost received an early birthday present over the weekend. The singer, who is pregnant with twins, experienced contractions on Saturday night (March 26) and was rushed to the hospital as a result.

"So #dembabies really wanted 2 celebrate w/us/share the anniversary! I started having contractions last night..went 2 the hospital," she tweeted, referring to her birthday as her anniversary.

After finding out the contractions were a false alarm, Carey returned home to finish celebrating her 42nd "anniversary" with her husband Nick Cannon. "Finally they said I could come home after they got it under control but...They almost came on 3/27- happy anniversary in deed!!! We have a few more weeks 2 go but- wow!!!: ) #soreadyallready!" she also told fans via Twitter.

This will be Mariah and Nick Cannon's first experience with child birth. Carey is expected to have a set of twins, a boy and a girl in April.

With plans to concentrate on her new family and a new CD, Mariah Carey recently turned down an invitation from Simon Cowell to appear on the U.S. version of 'The X-Factor.' Cowell's roster of judges is rumored to include names like Antonio "L.A." Reid, Paula Abdul and Jessica Simpson.

Watch Mariah Carey's 'We Belong Together'
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