Newly pregnant and trying to keep it a secret!

My husband and I have been trying for a baby for over a year now. Our first pregnancy was ectopic and wound up losing my left tube. My husband want to wait until Christmas to tell everyone but I just feel like ppl are going to guess before then! I have a lot of friends that like to drink and with the holidays they will all be wanting to hang out... Any advice on keeping it a secret? No angry posts please!