16 and Pregnant

Hey everyone. Posting anonymously because I know many girls on here might tell me I'm so stupid for letting this happen. I found out this morning I'm pregnant. I'm 16, living on my own, and my mother and father will absolutely sacrifice me when they find out. I've got to tell them, but how? 
Ps: the father has been my boyfriend and best friend for years. I have told him and he is scared but very accepting and willing to financially support myself and the baby.
I need to know now your stories, and can I do this? Actually do this?