Babies & Cats

Okay so since i found out I was pregnant I've been going back and forth about my cats. I live with my in laws and in total we have 4 cats. Two are mine and two belong to them. We thought about moving out but my in laws were heart broken and so was I thinking about being alone when the baby comes home. (Mind you my mother in law is literally my best friend) I'm not sure how the cats are going to respond to a baby I know the older two will be fine but not sure about the younger two. I thought about giving them away but I can't find it in my heart to do it. We've stopped letting them in our room which hasn't bothered them much but I'm sure when there is new baby furniture in there it will be a whole different story. 
Does anyone have any experience with being home a new baby with cats??