Difficult scary decisions

So I am 8 weeks pregnant. My boyfriend and I weren't trying but we weren't necessarily not trying either. But now that I'm actually pregnant he is practically begging me to get an abortion. He has a five year old son with his ex wife and says that he absolutely can't have another baby rigt now. When I was 19 I had an abortion and it was the hardest not to mention most painful thing I have ever done in my life and there isn't one day in the past 3 years that I don't think about it and wonder what my baby would be like had I decided to keep it. (When I made the decision I had very very strong pressure from my dad and boyfriend at the time to go that route and i regret not following my heart). Now I'm not sure what to do. Do I try to talk to him and find a balance or just try to raise my baby on my own? 

Thanks for your help ladies!