I’m not ready and I’m very scared.

So I’m about 5 weeks pregnant and I have absolutely no clue what to do. My boyfriend left. He wants nothing to do with my pregnancy at all. I’m 25 and I just don’t think I could financially support a child and myself by myself. I don’t know the first thing about abortion or where to go. I think it would be best if I did however I feel ashamed for even considering it. Help!!!