What to do

Hello I need some advise I'm 19 and I think I'm pregnant my last period only lasted 2 days nt normal for me and I backtracked and I came up with I possibly got pregnant the day I lose my v card ....so now I'm going to wait a week and my period dnt show I'm going to go to the doctor but the thing I need help with is idk think I want to tell my bf cause if his family knew they'd try take the baby away and I already dnt like them so now idk if I shouldnt talk to him bout it and just leave him dnt get me wrong I do love him its just he acts like a Lil kid sometimes ..I'm really just confused on what to do :( can anyone help me ?