Pregnant + Suicidal

This is my first pregnancy, and I'm 6 weeks + one day. I'm 20 years old and I suffer with Borderline Personality Disorder (BPD); some side effects of this disorder that I have include high anxiety and severe depression (that's right, those are SIDE EFFECTS). This pregnancy was unplanned, but not necessarily unwanted. I'm extremely confused and although I'm surrounded by supports including the father of this child, I feel completely alone. I can't make a decision because I feel like no matter what I choose I won't be able to live with the outcome. I am already attached to my baby, even though I've only known for like 4 days that I'm pregnant.. so naturally I want to keep it - but because of my mental health I've been without a job for months and unfortunately I dropped out of high school at 16.. I really have nothing (but love) to offer this little life inside me. I'm scared to opt for adoption because I don't want my baby to grow up resenting me (whether or not it knows me) and I don't want it to float around in the horrible foster system. I don't want to terminate this pregnancy because of moral reasons.. but, at the same time.. I have had severe morning sickness for two weeks, and it's only getting worse (considering the worst apparently happens around 9-13 weeks I honestly think I'll wind up with a diagnosis of hypermesis gravidarum) and the physical illness is taking a toll on my mental health already.. I honestly don't think I can carry this pregnancy out without sacrificing my own well being. All of the terrifying thoughts and feelings, combined with the pre existing issues and physical health deterioration have me extremely suicidal almost 24/7... I'm wondering if anyone else out there has become this suicidal during their pregnancy? I don't want advice about whether or not to make choice a, b, or c, and I don't need a pity party, I just want to know if I'm as alone as I feel.