17 and pregnant need some positive advice!!?

wells when I was 13 I was raped by my father and feel pregnant with his child I told my mother she called me a slut & a liar she made me have an abortion said if I didn't she would disown me, I couldn't imagine bringing a child into the word homeless so I agreed but as the years past I have been feeling worse about murdering my own child I always think & wonder what a horrible person I was to do that. I turned 17 in april and found out a few months back that I was pregnant with my boyfriends child my mother found out kicked me out and now I am living with him... I have no idea what to do if me and him fall apart I will have no where to go and know one to turn to I also know I am ready to have a child and to me I feel like god is giving me another chance to mend the past and move forward with my life. I guess what I want to know is if anyone else has had similar experiences and no negative comments please I already feel bad enough without any-ones help.