My male sim just had an alien baby

Liam O'Dourke, my current Sim, is expecting; he's already got 3 kids so this will be Number 4. I'm not sure if I'm going to move them to a new house or if I'll just change the bedrooms a bit; I was going to give the eldest her own room because she's about to age up to teen, but now I think her sister Colleen is going to share a room with her, sorry Emily. Either that or her brother Brandon will get the room if the baby turns out to be a boy. (I moved the Spencer-Kim-Lewis trio to another house because I want the 5 bedroom house for my family -- that way all the kids can have their own room.)