Kids sharing rooms?

Eks

Just found out yesterday I will be expecting my third.. haven’t told hubby yet.. a little scared bc we don’t really have the extra room... how many moms have their kids share rooms? My youngest is a girl (1.5) if new babe is a boy... is it weird for them to share a room while they’re young?

Also have 14 your old step daughter with the biggest room in the house( who we only have half the time) and a 6yo son:)

I know babe will be in my room for at least the first 9m-1y