"my first time ever trying birth control. i accidentally started it when i was spotting and and week later my period came. now i&#039;m on my 18th day and i&#039;ve never been on my period this long before. i have in the past but only because i&#039;ve had a stressful month. i&#039;m shedding a lot more and have cramps and back ache from time to time. i&#039;m thinking of staying it on it for one more month since maybe my body is getting used to it so we&#039;ll see. i&#039;m going to let my doctor know and keep her updated"