Accidental pregnancy

Me and my ex boyfriend have a 2 year old girl, we said we'd wait till she was 3 before having another.we had a condom break and my boyfriend was freaking out. I took the morning after pill. This scare made him realise that he never wants anymore kids. I on the other hand am sure that I definitely do want another baby. We broke up due to no longer wanting the same things. Just discovered morning after pill did not work and I've just got a positive pregnancy test. My ex wants me to get an abortion but I don't think I could do that... Any advice appreciated