When should I announce??

Francesca • Mommy & daddy to be 😬
I'm almost 8 weeks and since I was already a little chubby before pregnancy I'm already starting to show but it's more from being bloated. My family has been joking around like ooh you getting fat you look pregnant, are you suuuuureee 🤔🤔🤔. ( calling each other day is a joke in my family , isn't always said to hurt anyone. )
Anywho my boyfriend and I were going to wait until after our next appointment that just so happens to fall on his birthday Aug 18th. Then I'll be 13 weeks. Should I do it then ? I'm just scared that I'll be showing a lot more with in the next couple of weeks.