Bachelorette party in June

SKD • Lost my baby girl at 20 weeks February 2015. Rainbow baby boy born January 20, 2016🌈👶🏼. Early MC May 4, 2017. Second Rainbow baby boy born March 18, 2018!🌈👶🏼 💗Shayla Rose👼🏼💗 💙Royal Holden👶🏼💙 Lucas Stephen 👶🏻💙
So, one of my best friend's bachelorette party is in June.  I don't want anyone to know I'm pregnant since I lost my first pregnancy in the second trimester.  How am I supposed to pretend to drink lol?