starting my pregnancy not so good

I found out I was pregnant last week, I told my boyfriend(now ex) I was and his first words to me where "so your going to get rid of it right, your going to deal with this?". I wasn't sure what I was going to do. He doesn't think it's his when I have only been with him. Yes we were in a long distance relationship but I would never Cheat on him. He was the one(or at least I thought that). He wants a DNA test asap but I'm not putting my baby at risk to miscarry(from what I've read). When he finds out it's his baby he wants nothing to do with it, no name on the birth certificate, doesn't want to see it, just nothing to do with me or our baby. That it's only going to ruin his life(he is 20 and I'm 25). I have all my family's support but yet I feel so alone because he wants nothing to do with our baby. I understand he is scared but to be a coward like this just sucks.

I just need to vent and let it out somewhere no one will judge me. I don't feel like I made the wrong decision to keep it. This is a blessing and excited for this new chapter in my life.