Pregnant again after abortion

So I’m 26 and I have a 4 1/2 year old daughter who I’ve been a single mom to since she was born. Her dad doesn’t financially support but will get her every other weekend sometimes. I’ve been with my new boyfriend for about 6 months now. He has a 3 year old daughter as well. I got an abortion in November because we were really fresh in our relationship and didn’t think we were ready. I don’t think I can bring myself to get another abortion, I told myself after that I’d never do it again. But I’m so so so scared. Need some advice please.