Husband wants abortion for Father's Day!?!?

I asked my husband what he wants for Father's Day and he said he wants me to abort our second child! I don't even know what to say. He said that he's not happy with our first child and that a second would make things even worse. He's out now with our son getting pizza to celebrate today, but I am distraught. We already have one child and I guess that's enough, and I'd rather save my marriage than have a second. What do i do? I don't want to get an abortion but i love my wonderful husband, please help...