Alcoholic husband and sperm count

Ok don't come out me with judgement lol but my husband in an alcoholic. We've been TTC over a year and it's his sperm that's the problem (but we got pregnant first try with our first.) While we were TTC I didn't realize he was an alcoholic or how bad it was (don't ask, it's confusing, probably not something you'd understand unless you've been there) over the last 4 months he has been trying to get sober. Over this time, I would say TTC was out on hold basically because I understood having a child with this man wasn't the best idea. He's now been sober almost a month and I finally have my husband back for the time being. I'm hoping that he continues this path of sobriety. Now to ask, has anyone experienced this and had the alcohol been the reason the sperm was bad? Did it go back to normal and were you able to get pregnant after prolonged sobriety? I wouldn't say we are TTC again but in the future I'm wondering if it it will be possible without intervention and if the sperm will go back to normal? Anyone else been in this situation?