What the Heck is goin on im starting to freak out?

about 2weeks ago I missed one of my birth control pills and then the next mornin woke up and took it bc i felt crampy to get back on track i took the next one that same night at the normal time. The last two days iv been takin the sugar pills so i can start my period and im not at all.the last two weeks iv bled a lil every day, not heavy but enough to wear a panty liner and now im worried why my period hasnt started yet bc i start a new pack wed! HELP!!!