What would you do?

So I just had a baby boy in September and I found out I’m pregnant again! My hubby has expressed to me that he does not want another baby. We have three. One each from last relationships and one together. I do want another one but wasn’t expecting it this soon. He has mentioned to me that if I got pregnant again on accident, that he would really want to contemplate abortion! I do not believe in aborting my baby. I have not told him yet as I just found out. I’m scared of his reaction and I know he won’t be happy about it. Idk what to do! I want to keep it but I know he doesn’t want it.