in need of some mature advice please

Dione
 I'm 7 weeks now..nausea and my son's mental condition have had me traveling to and from his hospital/my school a lot these days. I went to go spend the weekend at my SO apartment. I told him I needed a break on Saturday..no cooking or heavy house work...after he returned from work on Saturday morning, he went food shopping. Once he was done with that, he came back, dropped the groceries and told me.." I'm too f-ing tired to cook..." so I did it..I went back to sleep..when my daughter and his daughter woke me up for lunch..he refused to help me..I cleaned despite my already nauseous/dizzy state..by dinner time I was repulsed by the touch of raw meat..I threw up my lunch..he didn't even check on me. When I asked him why he didn't help, he just locked up. This carried on until Sunday as well. When I approached him about it, he said that my issue wasn't a real one and that I was looking for a reason to start an argument. He and I have had plenty of issues in the past about things not being equal and about how proud and bullheaded he can be. If this is how bad it is now...what will come 6 months from now or a year from now?? I am 2 weeks away from my medical externship..I've been in school for almost a year(MA). I thought I was going to build a family with this man..but I already have two children (14 &9) on my own. We are engaged but the relationship has been super rocky. He said that if I decided to term the 🤰 it's over...I don't feel secure doing this alone..I did that with my other 👶🏽 👶🏽 and their wellbeing is why I've worked so hard towards my soon to be career....so I guess he wants me to keep it and be the only one who does all the house chores.?!?!! I haven't spoke to him since last night. The last conversation was me telling him that this isn't how things should go and this isn't the way things should be. I told him that he needs to stop bringing soo many unneeded issues in between us before he makes this a decisi n I'm forced to do..I am pro choice but this isn't what I want to do..I want to have this baby but not under these conditions...Any feedback from anyone at this point would really help!!!! Please..