Mother in law driving me crazy

Have to vent because my husbands mom is driving me nuts. I told my mother in law a couple months ago that I do not want to rely see anyone my last two months of pregnancy because I am just too uncomfortable and want to be relaxed(which they tend to stress me out) and I just want some space for that brief amount of time. Well that went out the window and now my mother in law has been having family members from out of town come to visit and she is also wanting us to come over to their house for a visit, or go out to lunch, or invites herself and the other family members over to our house, completely inviting herself. She has done this .multiple times now and its causing me and my husband to fight. I feel like it's so disrespectful of her to just flat out ignore what I said and play dumb. I told my husband tonight he needs to stick up for me more with her and put his foot down harder the he has been doing. I told him I feel like you dont have my back and hes only caring about her feelings. I'm to the point where I just want to ignore this women completly now for the remainder of my pregnancy (my due date is December 26th). I literally just want to be left alone. But she is one of those people that is just so pushy and always wants to be around. I'm going crazy! What would you guys do in this situation? And am I just being unrealistic asking for some space and to be left alone. Does anyone else only want certain people around them while pregnant?