Giving you a huge hug @northchesterforest
You've had a massive shock.
He's led you to believe it was only his friends doing drugs. You've put your body through hell to hopefully prepare for a baby and he can't even keep the marching powder out of his nose.
I'm glad he's at his mum's and that you've got space to think, as you've got so much to process.
I've read @icanseefrombothsidesnow post and there is so much in there I agree with. I know a lot of very successful professionals who took everything going back in the 90s. Most of them still do MDMA on a big night out and coke at least once a fortnight. They'll only have a beer or 2, as alcohol isn't their stimulant of choice.
I wasn't aware of how prevalent drug taking was around me until I found out about one person and then I asked more questions of other friends. My friends knew my strong stance on hating drugs, so just didn't tell me what they were doing. They're still great people.
The difference is I wasn't in a relationship with them, and led to believe they weren't taking drugs. Being lied to by omission in that situation is different to a partner.
I've been on MN long enough to know that the loud and clear voice you hear is that even being near a joint means you are the scum of the earth who is a drug addict. Hardly anyone on MN can contemplate that they know anyone who may use drugs recreationally.
This simply is not the case. I was extremely surprised when I started asking my questions as to how many around me regularly do, or did, coke. My most shocking was the headteacher who told me that he and 6 other headteachers always did a few lines together at their termly conferences.
If drugs is your absolute hard line, then I'm sorry things are over between you two.
If, like @icanseefrombothsidesnow and I, you see drugs as a stimulant, then there's a chance things may be able to be worked out between you.
If he'd banged his head as he'd been pissed out of his skull, would you still see it the same way?
Wishing you the best.