Hi D., Congratulations!
First of all, I would not be AT ALL concerned about what you drank before you knew you were pregnant... a)There's nothing you can do about it and b) It is incredibly common for people to drink in their first weeks of pregnancy. I pickled my little boy early on. We were on vacation and I was living it up and he is now perfect in every way. :-) Of course I stopped as soon as I found out I was expecting. I think the problems arise if the drinking continues. The odd drink will not hurt.
As for the wine, I feel your pain. My wind down was a beer in the evening and it was SO hard to give up. Eventually though I switched to Becks No Alcohol beer and I literally learned to love it so much that my son is now 18 months old and I am still drinking it. I know beer and wine are not the same, but it might be worth a try.
Take care and enjoy your pregnancy. All the best, D.