A heart full of regret

I can't anymore all I do is cry. I didn't really want it. But my husband was pushing for it. So we talked about it and went to the place on the date and I told him let's just go home then he thretened devorce and I almost walked away but then he said that he would take our 1 year old if I left. So I did it now I can't stop crying. And my husband won't talk to me at all. My heart litterly hurts when I breathe. Idk what to do.