Worse thing to say to your wife?

My husband and I got into a very heated argument. I started with him leaving in the car because (I am too slow according to him) geeeez I have a 14 month old to unbuckle, grab diaper bag, grab seat cover for high chairs, and my purse. When I went inside I told him”next time we walk in as a family”. We were seated and waiter asked me what I wanted to drink and I asked for the strongest alcoholic beverage because I need one! Then he asked my husband what can I get you?, he said, “a new wife”.... we left and it got worse in the car... we exchanged words and then he said the worst thing any husband can saw (after trying to conceive and having a miscarriage a month before) that he started the divorce process but I ended up pregnant. I was in disbelief with the words that came out of his mouth. It hurts just replaying it in my mind. How can any sane person say that along with I dont love you anymore, and I hate you. I’ve dealt with a lot of cheap shots but I think this was the last straw that broke the camels back. We both decided to try and I feel so deceived after everything he has said to me. This isn’t okay