17 accidentally pregnant

Me and my bf has s*x on Jan 6th I gave him consent knowing I wasn’t on birth control or anything my period was supposed to start on the 24th I took 3 tests last night 26th bc I didn’t start it all 3 were positive I gave my mom a senerio asking what she would do if I was pregnant scared of telling her, and she said she would not support me that I’d have to figure it out. I turn 18 next month on the 22nd, my bf mom is supporting us and so is he every step of the way. I thought of abortion but it’s not my top choice BC of how much I hate it. Should I move out next month with him and his mom? And finish high school living there, should I keep the child? Would I regret an abortion?