Has anyone else gone through the transition from living with your Mom and being super close to…

Has anyone else gone through the transition from living with your Mom and being super close to planning to move in with your MIL with your partner? I'm due date isn't too far (March) and we've been looking for a place to live because it's too expensive for him and I just to find a place right now and of course my brother in law would be living with us but that's not my concern, it's living with my MIL. She loves me like a daughter but since she has all sons she could be a little demanding but in a subtle way (not with me of course) but it's become very difficult for me to being open with the decision when it's my Mom that I'm going to need not her, and with my mom and I always being so close it's been a very emotional pregnancy because of that. Idk how I'm going to be able to move away from my mom in such an emotional time.