hi i am 21 years old, 5"8 and 150 pounds. about 4-5 days ago i wasn't taking my birth control pills at it's normal time or just not taking them at all, for the past 3 days i've seen brown discharge that goes and comes, when i urinate and wipe there's nothing there, but when sexually active it smells like the menstrual cycle, help! when is my period coming..should i take my pills again to be back normal