Well so around March 18th or 19th I had unprotected sex with my bf and took a plan B pill after 13-14 hours and around 23rd of March i bleed lightly and a pink lighting color for a week and haven't started my period since and so then I started Birth control around 12 th of April and now been on it for 3 weeks and I'm really scared because I have one more week left to start my period well I hope I can and do but I'm scared and I need answers asap because I'm young and worried and my own mother thinks that something is up, am I pregnant or when do I start my period or is it normal to not have my period for a while and been on birth control??