Feeling Guilty about being pregnant

I’m 21 and 24 weeks today with a boy about 3years ago I got pregnant. On purpose with my high school bf and had a miscarriage at 3months it was terrible and effected me mentally a lot my family made me feel dramatic saying you weren’t that far along and all that so I kept everything to my self now I’m pregnant again and it wasn’t planned at all with a friend that I’ve been hooking up with for 2years we both weren’t being responsible at all and i ending up pregnant I mean shit happens huh ?:/ after my miscarriage I told myself I was never having kids and that I couldn’t handle anything happening to me like that again so when I found out I was pregnant I was terrified I still am the father is decided to not be involved what so ever so it breaks my heart no one in my family knows not even my mom who I live with even tho I’m 6 months pregnant I feel guilty Bcz I’m not happy that I’m pregnant even tho I know I’ve always wanted to be a mom since I was little but idk For some reason I’m not happy at all I cry everyday I’m scared that I’m gonna raise this baby alone and also the reaction of my mom and family I’m already super upset and sad about the whole situation and I don’t think I can handle any more negativity around my pregnancy I feel guilty Bcz every baby is a blessing but Idk any opinions please be nice