hi andrea! with the pregnancy stuff, you're going to start asking questions and realizing no two answers are the same. everybody has their own opinions and some people tend to be very outspoken about them. you have to find your own comfort level in your pregnancy.
in my opinion, it is ok to ride a bike early in the pregnancy (before your shifting body shape starts to throw off your balance) as long as you are a skilled and confident rider, and as long as you are not taking risky, high-traffic routes AND as long as you understand that you are taking a risk as a fall from the bike could be devastating to the pregnancy. some people would say you can ride all the way through; others would say you shouldn't ride at all. ultimately you have to decide for yourself. ultimately no pregnancy is 100% risk-free; you just have to find your way. it's usually not rational. like some women may still eat sushi and drink the occasional glass of wine but won't touch coffee, etc.
the alcohol thing is a big nuisance, especially if you are normally a social drinker. people do notice, although a party is easier to manage than, say, a sit-down dinner where everybody's wine glass is getting filled or everybody is ordering cocktails. my approach was just not to engage. if people are tactless enough to comment on your drinking, just ignore them. don't take the bait. i found the people most apt to do this were usually either men (no clue) or younger/single women who wanted to give me a nudge and a wink, like, i'm onto you! most other women have the tact not to say anything. i was surprised.
feel free to ask me anything else. i remember i had so many questions at first about what i could or couldn't do.
good luck! can't wait to hear about your results tomorrow . picture, please!