Advice and thoughts?

So just got my positive test, judging by my last period due date would be july 27th 2024. My friends wedding which i am a bridesmaid in is also july 27th 2024 😬.

My last 3 babies were born at 36,37 & 38 weeks so chances are ill go early again. Now my dilema is do i tell her asap before anyone else so that i can offer to pull out of her wedding and avoid all the uncertainty?

Do i just wait and tell her same time as everyone else. And just hope i either go over 40 weeks or early with no complications and have a newborn at the wedding?

We are going dress shopping next week, so i kind of need to make a decision soon.