birth control
"I started this pill back in August after being on Loestrin FE.  I was happy with that pill but it turned out I was having a bunch of the side effects listed to call your doctor about!  Anyways, every month for the past 6 months that I have been on Kariva I have gotten my period a week early and it has lasted through the whole 2 weeks.  When I was on Loestrin I got my period on the 4th monday of the month and was finished that Friday.  My period has been heavier and I am getting cramps again.  The good part of this pill is I am not getting shooting pain in my breasts before my period now, the downside is getting my period for 2 weeks in a row every month.  I am going to call my doc on Monday to try a new pill."