Missed Period, Just started birth control!!! Help!

Okay, I just started birth control on 10/7/2016, only took it for 2 days, I knew My period would be here soon so I stopped on 10/9/2016, My period was supposed to have started 10/10/2016 but it's a no show 😱 what do you ladies think? Pills can't stop a period that fast or can it!?