So I been on the pill for about a year now and I have had this app for well over a year and it says today I am late by 3 days but I have no PMS symptoms like I normally always do before my period like I feel completely fine besides getting a headache every so often or feeling gassy. My last set of active pills ends today. Should I be worried? I never had this happen before and me and my bf do it often sometimes but we always try and be careful but sometimes not always so idk what to do.