Probably just a strange way your body is taking to the birth control. I take it and when I switched to it from yaz I had dark colored break through bleeding, but only lasted a few days. Call your gyno.
I started taking the pill and the first month menstue normally, but in the second package came to take 15 days and 15 days menstruating, 4 dyas ago to stop taking the pills and do not know if it's normal, it hurts a little head and ovaries, thanks.
I am in loestrin24 this is my first time with BC the firs month i started with the pill my period came on saturday I stard the pill on sunday and on monday my period gone, the first month i have some headache the first month using the pills i got my period i was dark and dry but i have my period for 6 days them the second mond with the pills i didnt got my period but i feel as i will have and never came now i am in my 3 package in the second row and i little worry but my doctor says that is normal that some times i didnt got my period, i began star worry because i read in the loestrin advise that if i didnt got my period for two months i could be pregnant.