Hiya FrozenPeas, I'd agree with warpig, spudqueen and funkymouse re alcohol consumption - basically I wouldn't worry too much about it. You have been considered and careful in your actions and have obviously had a lot of thinking to do recently.
If it's any consolation, I am 26weeks pregnant and I have the occasional drink, I would say on average probably one small glass of wine per week, or two at tops. Also, I think it is quite common for women to have drunk more than is acceptable because they didn't know they were pregnant (I, for one, have considered "Tequila" as a middle name to my baby following a rather raucous night out several weeks before i found out I was pregnant). My aunty and my mum both did not find out they were pregnant until they were 6months gone, because, like me, they had no symptoms or weight gain til then end and so were not careful about their alcohol consumption, although neither were alcoholics they were women in their 20s who enjoyed a night out like the rest of us.
I personally think everything is fine in moderation and as long as are in good health yourself then you should be fine - ask me in 14 weeks though when babes is here! And remember that there are lots of people on here willing to help and give advice if you want to chat about anything xx