"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."