Partner ignoring that I’m pregnant again?

I came home from work last night, going bonkers over telling my boyfriend I was pregnant again (I have 1 other child by my toxic ex). I come home into our living room and It just jumps out of me like a bat out of hell. He didn’t say anything, he didn’t look at me. He just took his phone, wallet, keys, and walked out, he didn’t even come home until 4am and even then he still didn’t say anything to me. And he’s never done anything like that before, it was like he was in a trance. I have to leave for work in an hour and he’s still sleeping. Has anyone ever dealt with that?

EDIT: yes we’ve talked about having kids and agreed we’d want them if it happened, but we never planned for this one.