update: My SILs behavior surrounding my pregnancies

Hello everyone,
A few people have asked for updates and honestly I’m at the point where I don’t even know what to say. There past month has probably been the worst month so far. I am now faced with the reality I may have to completely change my kids schedule and also just go MIA from my house on a particular day of the week.

First incident was my husband and I took my children to a school giveaway event and she called him asking where I was. I have my kids in counseling and she signed her kids up at the same building, on the same day of the week as my kids.. she already attended probably 5 of these events and this was our only one. She then said okay no problem, pulled her kid out of his session and drove all the way across town to walk around with us for this giveaway. My husband told me this after the event when he had just told me in the moment oh she’s coming to this too! Obviously wasn’t completely true.

As many suggested I had another talk with my husband. I expressed how stressed I am, how I don’t know what his sisters deal is. This was before and after a very stressful encounter with her being we had a prior commitment (like before pregnancy sale commitment) we prepared for the sale before I found out about the baby. This sale is every 6 months so I knew it was coming up. Essentially we had combined kid stuff and decided to sign up for a sale and she’d give me my portion, we’ve done this before it’s never been an issue. Well this time she has fought me tooth and nail on how much I made. She never sent the money and I pretty much told her that I won’t be doing this sale with her in the future as her communication is ass and she’s clearly trying to fuck me over. We got in a fight and she essentially is trying to nickel and dime me for EVERYTHING even though I only made 40 bucks from this sale. I have NO income. I have another kid on the way, i have no help. She also worked this sale so my husband watched her kids for two days so she could work it. She lives with her parent, her uncle bought her house so her mortgage is not very much. She has 2 jobs. So her 3 kids and situation compared to my about to be 5 is insane that’s she’s acting this way. A week before this my husband came to me and said his sister asked to be in the labor room and watch my delivery. I think I have been in a haze of depression ever since. I truly am considering ending my relationship over this situation. She has been over to our home over 6 times since my last update and 3 days ago I sat my husband down again and told him I am extremely stressed. I am extremely angry. I need a break from her at least until after the baby is born. He seemed receptive. Was also saying how crazy it was that she was refusing to give me not even a tanks of gas worth of money for something I worked for. I brought up her weird shit with the baby, how she’s not only stressing me out over money and being around but she is way too interested in our baby and it’s very weird. Again, she is extremely selfish and thinks everyone should do for her because… well she thinks she’s special. So I figured amazing. We won’t have to deal with her for a while.
WRONG. he says the next morning folks, THE NEXT MORNING “hey she’s coming over today for dinner and swimming” I just shook my head and stared at him. This turned into him MAD at ME because I had an “attitude”
Oh my god no shit it’s almost like I said hey I need a huge break from your lunatic sister. She was here majority of the day. The typical thing is she’ll bring her 3 boys into my house and go outside and smoke with my husband, leaving me with 7 kids to watch. I live in an apartment. This time? I went straight to my room and shut the door. I completely shut down and ignored everything because I’m tired of this dynamic. It’s 8 years deep and I am done. Afterwards when she left, he seemed genuinely confused as to why I was so out of it. He chalked it up to pregnancy sickness. This morning something separate stressed me out regarding my time and energy with someone else in our life and I told my husband that at this point it seems like everyone either wants me to be old me (huge bitch) or to just smile and nod. Everytime I express how I feel I am considered to be such a difficult person when my feelings are disrespected. I told him I am considering medication because at this point I am in a really dark place mentally.
He told me whatever I gotta do. I don’t know what to do. I have done everything I can and the only thing left is just my husbands clear lack of care over my boundaries. I now have to consider changing my entire schedule around just to avoid her every week. I don’t want to do this anymore. And even with me putting my foot down, yelling at his sister, and sitting him down about how fucked up everything is… it still was not enough. I am just seen as a mom and nothing more and I am not okay at this time. I am seriously considering separation as well as not allowing anyone, including husband, the the hospital when I have my baby. I have no fight left in me guys