Announcing Pregnancy to Family

How long did you wait to announce your pregnancy to your family (parents, in-laws, etc)? I want them all to know early on so that I have their support, and because it’s killing me that they don’t know, but I’m only like 5 weeks and I haven’t had an ultrasound or any sort of doctor’s appointments...just a few positive at home tests. I really want to tell them...but I just don’t FEEL pregnant...so I’m not sure if I should wait until after an ultrasound or something.