"i&#039;ve had a pretty good experience with this birth control. i didn&#039;t experience any mood swings or weight gain. i actually lost a bit of weight the two times i switched to kariva from a different birth control. overall i felt better on this birth control than any other that i have taken. the big issue that i had is that after taking it for a couple of months i would get breakthrough bleeding in the middle of the month. the bleeding would last so long that it pretty much a second period. it was a bit frustrating being on your period for half of the month. it might have decreased my sex-drive a bit too."