Am I wrong?

I am 4 weeks pregnant and my bf don't really want anything to do with it. But he just took the week off of work next week to go to electric forest with his friends and camp there 3 nights.  I just told him I don't want him around after tomorrow since he's going.  He says I'm being dumb and he's not a easy hoe. I don't trust it Because when he's drunk and on drugs he is sloppy and gets horny over everything. And I know he'll be on X/Molly as that's what is normally taken at Edm stuff, so once he sees the girls half naked and how his "every bitch begs for my D attitude, he's gonna cheat.  Am I wrong for basically breaking up with him over this?