How soon did you tell close family

Emma • First baby due 15th Feb 17 Baby BOY 💙
Just found out I'm pregnant today !! 
I'm 4 weeks.
I've told my mam and sister that I'm pregnant .
My so was so excited he told his brother and now he wants to tell his mam and dad .
Do you think it's fine to tell them even though I'm only 4 weeks ? 🌷