How true is it that too much drinking alcohol can make u incapable of having children??

Me and hubby we've been together for 3 yrs and till now am still not pregnant. I am wondering maybe there is something wrong with him since his water is wine/beers like 24/7 so maybe that is the reason.

I really want to have a baby and it will be so boring and sad for me not to see my own blood and flesh.

Please help us!!