MARIAH'S TRIP TO THE FERTILITY CLINIC WORKED WONDERS! SHE'S HAVING A GIRL & A BOY!

It will be one of each for Mariah Carey and Nick Cannon. The couple, who are having twins, are expecting a boy and a girl, a source confirms to PEOPLE.

So far the parents-to-be have been cautious about revealing too many details about the babies since the couple had a “long journey” to parenthood, Cannon said in December. Cannon, 30, and Carey, 41, are preparing for the arrival of the twins’ by “decorating and designing” the babies’ nurseries – one in Los Angeles and one in New York, Cannon tells PEOPLE. Meanwhile, Cannon says that his wife has also been cooking up a storm and staying active with daily swims.

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