This is to UK mummies especially...where are you going to live when baby comes?

I'm 20, my mum wants me to stay at home up realistically there's no room, I still have a single bed haha! My boyfriends parents house has enough room but I don't know them well so might feel uncomfortable and I don't think I would want to be far from my mum. I am hoping to get a council place but it seems impossible and once you start renting privately people seem to get stuck in it but I really want to purchase a house one day