Alcohol...

Out of curiosity, I asked my doctor what she thought about drinking while pregnant. She gave me her blessings, however I am still nervous about having a glass of red wine every now and then. My job is extremely stressful and I was accustomed to having a glass or two a few nights a week. I hear the UK allows drinking, haven't really done the research. 
I'm curious to know your thoughts/ beliefs. 
For the record I am 29 weeks and haven't had an ounce during my pregnancy.... But boy do I crave it.