When to announce?

Haley • Wife 4/14/18. Dog mom. RN. Mommy to baby Adeline 10/25/19. 💕

I was wondering when y’all announced your pregnancy to your close family members such as parents and grandparents? I’m not ready to announce to everyone yet, but I have my first ultrasound on Tuesday March 5th and I should be around 6 weeks and 5 days going by my last AF. Should we announce to our parents and grandparents after the ultrasound or should we wait until closer to 8 weeks or longer? Just looking for what others have done, this is a first for me! Advice is needed :)