Rachel Uchitel — I’M PREGNANT!!!

There’s something growing inside of Rachel Uchitel … and this time, it’s not the guilt from sleeping with a married golfer.

Uchitel — former Tiger Woods mistress numero uno –has announced that she’s preggo … and by the looks of the photo, she’s pretty convinced the baby belongs to her husband Matt Hahn.

TMZ broke the story … Rachel and Matt secretly tied the knot back in October. The two have been living together in San Francisco ever since.

Uchitel tweeted the photos last night — and wrote, “Expecting big things for 2012… Five down, Four months to go.” By our math, the baby is due sometime around the end of April.

Congrats!