When do you guys think its time to go public with your pregnancies

Chassity
My name is Chassity and this will be my first and I still haven't made it public as I'm only 4 weeks and 1 day. Only close friends and select family know but I some times feel bad cause I don't want to hurt no ones feelings about not telling them first I just wanna make sure everything is going to be ok first but unsure when I should let the cat out of the bag so to speak