We know what Tracy Morgan will be doing now that 30 Rock has ended -- changing diapers! 

Tracy and his fiancée, model Megan Wollover, are expecting their first child together. He tells People magazine, "I am over-the-moon excited and just want a happy and healthy baby and a safe delivery for Megan." The 44-year-old has three grown sons from a previous relationship. 

30 Rock ends its seven year run tonight (Thursday). Tracy's co-star Alec Baldwin is also rumored to be expecting a baby with his new wife.