I feel horrible

I’m 17. Over the last couple months I became pregnant by my boyfriend. I suffered from a trait where pregnancy is VERY sickly for me. It’s called hyperemesis gravidarum (google it) basically it’s moring sickles but 10x worse. You throw up ALL day not just in the moring. You can’t eat ANYTHING. On thanks giving day I could eat anything (which sucked). And because I’m still in school and it’s my senior year it’s CRUCIAL that I come everyday. There are still classes that have to pass. And I was missing WEEKS not just days. So I made the decision too have an abortion at 6weeks because I figured, how can I raise a baby if I can’t even graduate first? I had too do what was best for me. So now here’s the issue, I’ve kinda started to regret it not a lot but here and there I wish I was still pregnant. I don’t like birth control because it makes me bleed heavy and gain weight so I choose too stay off. Me and my boyfriend have a lot of sex and there have been slip ups, one half of me wants too honestly get pregnant again because I feel like I could’ve done it, and the other half feels bad because if I do get pregnant again so soon then I killed my baby for nothing! It’s super hard dealing with it all emotionally