Excuses to hide a pregnancy ???!!

On Friday I found out I was pregnant, my husband and I have agreed to tell close family only until we reach 12 weeks however I have a friends hen/bachelorette party (which I will be around 8 weeks).

I have decided not to go because I really don’t want to tell anybody and I’m usually quite outgoing so they will instantly guess if I’m not drinking.

I know about the antibiotics one but is there any other excuses ?! I think saying you’re on antibiotics is a big giveaway for people hiding their pregnancy