My husband said we are over

I said that the kids should be in bed with tv off at 9:30 and he asked me why I said kids need to be going to bed at a reasonable time and getting enough sleep well he said he's had enough of me being too strict and we are done that he's printing off the paperwork right now. I'm so hurt and feel so broken and am currently 5 weeks pregnant. I feel like he was looking for any reason to leave me. I feel like there's more going on then he's letting be known.