What do I do?

No judgement here please I'm already giving myself a hard time. So a bit of background info, I've been with my boyfriend for just over two years and I'm now 21 weeks pregnant. I love my partner but for a few weeks I've been having doubts. he has his own house and the plan is for me to move in before the baby is born (I live with my mam and dad at the moment ) I suddenly feel overwhelmed and like I'm not ready to move in at all. But with a baby on the way I don't have much choice. I'm starting to wonder if he's the right person for me. I really don't know what to do :( please no negativity as I'm already giving myself a hard time