I can count on one hand the number of drinks I've had since becoming pregnant! Including 1 glass of champagne on NYE and half a Guinness after my 20 week scan. And I was a BIG drinker beforehand. Christmas was PAINFUL. Like other posters have mentioned, I don't see the point in drinking if you don't get that 2-3 drink 'buzz' so have found it easier to abstain than I thought. I've been relying on de-alcoholised wine and Becks Blue to get me through social events! The Torres Natureo red wine (you can get it in Waitrose) isn't too bad if you mix it with cold lemonade. It's 0.5abv so not completely alcohol-free, but the amount is negligible. I think a large part of feeling 'drunk' is psychological anyway! I'm sure I've felt 'tipsy' after a few bottles of alcohol-free lager...
I also used to do Slimming World and they had a recipe for alcohol-free 'Pimms', made using balsamic vinegar (I kid you not). Seriously, Google it. It's not hideous!
I don't sit in judgement of women who continue to drink small amounts during their pregnancy; in my nan/mum's generation it wasn't frowned on so much, and some alcoholic drinks were actually recommended in pregnancy! My mum told me that, when I was a restless baby, a doctor actually advised her to dip my dummy in brandy to help me to sleep! 
As long as you're not getting off-yer-tits smashed or injecting heroin into your eyeballs, I think you'll be OK!
You need to read up on the risks (or otherwise) and make a decision you are comfortable with because you'll find subjective, anecdotal evidence on here to support every standpoint on the subject.