I'm going to lose my mind. My MIL is driving me up a wall.

First off, she is self absorbed and doesn't take my feelings into consideration and my feelings are never valid. When I had my doctors appointment and was told I possibly have preeclampsia I freaked out. That's a normal fucking response. My mom had it with me and had me at 30 weeks and she was brought back to life twice because of it and I almost died as well so it isn't something my family takes lightly. She flips on me how I need to stop stressing out (I was calm after I left my doctors office I just explained to her that I got scared. Nothing else) and how I need to stop thinking of myself and think about my son and him only. I got pissed and said uh no, because you see with preeclampsia nothing is wrong with the baby. It's me. Things can get deadly very fast with me and my baby will be just fine. She just doesn't get it. Secondly, she asks my fiancé if he wants to go to the new aquarium with her tomorrow since they're life time members and I thought okay I'm not going. Wrong. She just assumes I want to go. I don't. It's going to be crowded, I'm 9 months pregnant so that won't be fun for me. I'm so uncomfortable I hate going outside and being around people. He tries to explain this to his mom that I'm going to be uncomfortable and she goes "why. i don't understand why she would feel that way. we saw so many pregnant women here today and babies in strollers. she'll be fine and i need to take photos of her anyway" it's always about her and what she wants. so now I've kept my mouth shut and I'm upset because I absolutely don't want to go. Especially at 9am. I've been having contractions all night and Ive never woken up that early because I don't sleep throughout the night anymore. Thirdly, my fiancé tonight wanted us to go to the car show since it would technically be our last time going before the baby. He wanted to go at 7... It's still hot out. I said no I don't want to go. It's too hot. He basically talks me into it and I said fine but I won't be happy about this the entire time. Well we get there and it's crowded and extremely hot out. I'm miserable, he can see it but yet wouldn't leave until 9. It's like they're both controlling and just do what they want so they can get what they want. Doesn't matter if I'll be unhappy. I'm just afraid if I don't open my mouth, tomorrow I'm just going to burst into turns and tell his mother off. Because she's just so rude. She thinks I'm crazy for not enjoying being pregnant in this heat. How she loved being pregnant and how she looooves the heat in Arizona. I can't stand it anymore. It's gotten to the point to where I don't want her in the delivery room with us because she's the 6 figure income woman who has to know everybody's names (aka the nurses) take photos of EVERYTHING when I've told her numerous times to not take photos of me pregnant or in the labor room and she just laughs and does it anyway. I'm at loss as to what to do. I told my fiancé before he fell asleep that I don't want to go tomorrow and he says "well maybe your water will break from all the walking, you'll get over it". 😡😡😡