I honestly don’t know what to say that I haven’t said before. As soon as you start abusing cocaine it’s a relationship/family breaker.
I am in the same situation, as are many others on here. Husbands sniffing coke for one reason or another, usually an upset in their lives as I see it.
The only way you can support him is when he reaches out and accepts he has an addiction. No amount of talking, begging or reasoning will get through to him, cocaine will win in most situations. Try to look after yourself and your babies wellbeing firstly. You can do no other as the cocaine is looking after him. Keep strong and I hope the drugs worker can help.
You will get support on here I wish you well.