abnormal uterine bleeding
"I've had a positive experience with these pills.  I am taking them to eliminate painful periods and to balance my hormones.  I take the continuous pills, so I never have my period.  The first month was more difficult. I had tender and swollen breasts and moodiness.  During the second month, these side effects subsided, but I had a lot of spotting.  Finally, in the third month, the spotting has stopped.  Bonus, I have had an increase in breast size of 1/2 to one cup size."