Gender reveal?

Anais • 2boys 12/14/12 & 03/10/18 💙💙 pregnant with baby #3 due 01/26/2021

Hi guys I'm currently 5 weeks and 3 days with my first I found out what I was having at 16 weeks . This time I want it to be a surprise any ideas? I was thinking maybe doing cupcakes with my husband, son, and I because I don't want it to be a surprise for all of us. And does the obgyn write down what your having I don't want him to say it and then ruin it for us lol.