"i started taking this pill five months ago for terrible cramps. the first 3 months were fine. the period was regular and the cramps were nearly non-existent.  my mood has been up and down, and i am always tired. last month i bled for over 2 weeks and this month i had only a tiny bit of blood. my boyfriend and i use condoms every time just in case so i&#039;m pretty sure i&#039;m not pregnant. it&#039;s very scary not having a period."