abortion?

What is everyone's opinion on getting an abortion to save a marriage? I am currently with the love of my life, absolutely adore him but i accidentally got pregnant which is not what we both wanted any time yet, I've had two miscarriages with my ex before this but I don't think I can raise this baby on my own without my fiancé... I love this man and he said he will try his best to be there for me. We haven't got stable jobs, a house together, we both wanted to travel and he isn't ready. I'm happy to raise this baby but I don't think I can leave my partner. He has given me two options to abort the baby and stay with him and we try again in 3+ years or keep it and never hear from him again...