Tracy Morgan to be a Dad Again!

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While Tracy Morgan and the rest of the 30 Rock cast is bidding farewell tonight, the 44-year-old comic is preparing to say hello to a new child.

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Morgan confirmed to ET that he and fiancee, Megan Wollover, 26, are expecting their first child together. He went on to say that at this stage in her pregnancy, Wollover hasn't enjoyed drinking water, so she's been flavoring her water with MiO liquid water enhancers to help. This will mark Morgan's fourth child, as he raised three adult sons with ex-wife Sabrina.

Morgan split from Sabrina in 2009 after 23 years of marriage and announced his engagement to Wollover in September 2011.

Although there's no word yet on the gender of the baby, the Emmy-nominated actor recently opened up to Rolling Stone, saying that he hoped to one day raise a baby girl.

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"You know what happiness is? Happiness is a simple thing, man," he said. "It's having something to look forward to."

You can catch Morgan in the series finale of 30 Rock tonight at 8/7c on NBC.