Mariah Carey is Having a Boy! Definitely. Maybe. Most Definitely Maybe.

Oh, we’re in for some fun maternity clothes, people. . . A “source” (yeah, I know, I know…) confirms to HollyBaby.com that Mariah Carey is four months pregnant with her first child — which is supposedly a boy.  Although she and hubby, Nick Cannon, have been coy about her pregnancy, Mariah is expected to make an official announcement in the next couple of weeks when she — surprise! — begins promoting her new holiday album, Merry Christmas II You.  What a lovely coincidence.

“She’s having a boy, but the reason that Mariah didn’t want to say anything is because she is 40, and she’s superstitious,” the insider says. “But she’s going to appear on Oprah and The View, so she’s planning on making the announcement soon.”

Other exciting details:  The insider reveals “they haven’t decided whether they’ll raise the baby in New York or Los Angeles.” They are currently living in Nick’s LA home while renovations are being done on the former Bel Air home of Farrah Fawcett that Mariah bought last year for $7 million. The 11,750 square feet home has five bedrooms.  Which should be almost big enough to house the baby and Mariah’s Hello Kitty toy collection.  Almost.

But wait!  There’s more!  Mariah took fertility drugs to get pregnant, according to the big-mouthed insider, who says, “the fertility drugs were the reason for her weight gain earlier this year.” She has also given up drinking alcohol — “she stopped drinking back in March or April this year,” the source says.

Most importantly, you know maternity dresses barely covering her baby maker and pregnancy breasts* are going to fill our computer screens for the next, oh, five months or so. Should be quite a sight to behold!

*See Exhibit A:  The above picture.