Emmykate82 ... it's not you!
First of all congrats to your DH and you for surviving such a hard time - it's not easy.
My DH dried out 2 weeks before we discovered I was pregnant (we were separated) and for the first 3 months his libido was affected as drinking so much really does affect everything and it takes a while for things to get back to where they should be after drying out.
Also if he was using grog to deal with stress he might be feeling completely overloaded and also guilty for the way he treated you and the stress of not being the "provider".
My DH has been sober for 15 months now and he is still beating himself up over his behaviour in our first 4.5 years together.
Maybe encourage him to talk to someone - not necessarily in a formal sitting ...if he has a supportive mate or father or something like that he probably needs to get it all out.
My DH is the strong silent type and he went to AA....big thing for him but he went to a few meetings to undestand that he's not the only one with this prob....

Try talking to him about how you are feeling ...it might be that he is so self absorbed at the moment he hasn't even considered how you might be affeced....I'm sure it's not intentional but there are a lot of things that come along with being sober ...not just avoiding drinking...

I hope this made sense....I am really tired ...LOL

If you need anything feel free to PM me