Unsupportive Fiancé baby#2

Ever since finding out I’m pregnant with baby #2 my fiancé has treated me like absolute garbage. Talks down to me, tells me that I’m a lazy bitch, I lost my job due to being pregnant because my work didn’t want liability if something happened, so now I’m only making $150 a week working at kohl’s and he says I’m using my pregnancy as an excuse for not being hired. I’ve had 20+ interviews at different places and over the phone they tell me I have met requirements but when I interview they see my belly and then say I’m not qualified. He tells me I’m not trying & just really hurts my feelings. I’ve been so much more exhausted this time around as well so I will clean and do some dishes and have to lay down and relax. When I get off work from standing al say he doesn’t allow me to relax and says he works longer and harder than I do, so he deserves it more. He’s also been caught messaging other girls and shit and flirting with them. And I’ve ignored it after he says “it’s nothing” and he won’t do it again. I’m so lost on what to do. Like I love him but, I don’t love being treated like this.