Drinking whilst TTC

Lindsey • 🌈 Hoping to meet our Rainbow in February 2016 🌈👶
I'm just wondering what people's views are on this. I miscarried my first pregnancy in March and told myself I'd not drinking caffeine or alcohol at all once we were trying again. Fast forward to now, still not drinking caffeine at all. Still managed to avoid starting smoking again (smoke free since January! I Stopped the day I found I was pregnant) I did have a glass of wine on my period (consolation prize for no BFP) ... I'm on my second cycle now and we've been invited to Twickenham tomorrow for the Rugby Sevens and it's a corporate box with free food and drink. I'm obviously very tempted to have a drink, not get wasted at all but a glass or two of wine sounds great. However I'm 4dpo so there is obviously a slight change this could be my month and I don't want to harm my baby if I am... I just want to know what the general rule is with drinking whilst TTC and could it harm the baby? 🤔🤔🤔🤔