My baby's father wants nothing to do with me... i'm only 3 weeks pregnant ... what should i do ?

Live your Life: I hope you did not get pregnant just to save this relationship. I say that with as much compassion as i can. But, this site here is not really designed to provide you with mental health counseling. It surely sounds like you need to see a counselor as soon as possible. I would ask the school nurse or the team at planned parenthood if they can help you find a group or a therapist.

Talk with doctor: You are a minor, and pregnancy is no simple issue. Speak with a trusted adult soon.