regret my child😢

I'm, 20 years old,newly pregnant( 12 weeks) with a planned baby. ever since we got our bfp my marriage has been going downhill.. after 7 years with this guy id never expect this. I feel so alone he has become disrespectful and let's not even get into infidelity. I feel really depressed and regret even getting pregnant. we planned this as a team but now I feel stuck and that I can't do it on my own. I have no where to live if I keep my child, I can't work as I normally do due to hyperemesis gravidarum. I live in ny so one bedroom is 1300 and I just don't know what to do. I do not believe in abortion but seriously been thinking about adoption. this is not the time to lecture me on my dumb choices but please give your advice and thoughts.(My mother also doesn't want to be a grandmother so I'm not allowed to live with her and family members aren't supportive)