I found out at 10 weeks. With IVF it's the one nice test that you can feel good about.
I initially didn't want to tell others but DH blabbed to everyone he met so that was gone pretty quick.
I'm still glad I've know - it's really helped me to bond and get ready, although it does seem a slippery slope on what info you share.
My DH eventually gave up the name to his work colleagues and I hear today he was discussing how engaged my baby was and when we might consider induction at his work 😧
So just be really clear about what you're telling and to who.
I also wouldn't rely on the DD to keep a secret - that's pretty tough.
It's why I've made sure my two year old niece has never heard mention of the bubbas chosen name. She's really bright and would repeat it to Grandma For Sure!!!!