i’ve been on the birth control pill for almost 7 months now. i had my period 2 weeks ago and yesterday i started having brown discharge. today i started what looks like a period with my normal flow. i had unprotected sex a week ago and have been consistent with my pills. last month my period was early bc i was a day late on my pills but went back to normal my last period. should i be worried that i’m having a period again even though its only been 2 weeks since my last one?