Am I wrong?

Raylynn

So a little back story. I'm currently 5weeks and 5 days pregnant. I recently had to resign from my job due to medical reasons so needless to say money is tight. My fiance has 2 daughters from a previous relationship and I have one. Well tonight he tells me he isn't going to get paid enough to pay his child support and pay our mortgage. So I said well she should pay the mortgage first. He went off on me! I'm blew up. He said I was trying to make him loose his kids and on and on. I said no but we need a place to live we wouldn't be able to have the kids without a place. He told me he would rather pay his child support and see is his kids and live on the street then. Wtf? He also told me I was trying to get him thrown in jail by telling him not to pay his child support so I could get custody of our unborn baby. So now he is sleeping on the couch downstairs. I don't understand why he flipped out so bad. I also don't understand why he thinks is more important to pay for his 2 kids then to have a house for all six of us. What should I do? I know he's going to asked me to apologise but I don't feel wrong.

P.S. I never told him not to pay his child support I just said we need to pay our mortgage first.