So you've tried Once since he got off the drugs, and you're already asking about having trouble? You Do understand, dont' you, that even fully fertile couples commonly take 3-6 months to conceive, and can take up to a year?
You Do understand that it's going to take his body some time to return to normal after stopping the drugs?
If you're not pregnant in 12-18 months Then consult a doctor for help.
The potency problems encountered by abusers of anabolic steroids can be permanent. Everyone is different but the longer that they are abused, the longer it can take to recover and the greater the odds of permanent damage. He needs to be evaluated by an endocrinologist before trying to father any children, and he needs to be completely honest approximately his abuse.
It takes even healthy couples 3-6 months on average to conceive, and by being a steroid user he's hardly a healthy male when it comes to reproduction. Online articles appear to indicate that his fertility will return to normal but it will absolutely take a few months to do so.