Hey ladies, I'm after some help/ideas.

I'm currently 5 weeks pregnant and have our first event that is with family next weekend. We regularly have a drink, so me not drinking will set off alarm bells. We were pregnant last year but had a miscarriage, so we are very reluctant to let anyone know so early on. What have people done apart from the "I'm on antibiotics", "I'm on a clense"...they will see right through it and call me out. Even when I'm DD I always have one...any ideas?? Thank you!