"ive been taking this about 6 months .. coming off my paraguard implant which i hated copper does not belong in the uterus ... the first month i started on  sprintec i ended up with a yeast infection.. im assuming the extra amount of estrogen caused this an body had to get use to it ...lasted maybe 4 an half days... it did regulate my period to when i started the white pills ...now this is my 6 month and i&#039;m started to have two periods a month heavy bleeding too... although effective not sure why i&#039;m having heavy periods so often now. another side affect it has made me loose about 20 pounds  over this course of time i become super tired allll the time ... it works but i guess gotta get use to it."