"i started this pill about 2 months ago and during both months i bled in the middle of the pack. my doc insists its just breakthrough bleeding and that i am still protected but the bleeding is hard to deal with. it&#039;s about as heavy as a period and it lasts at least 10 days! i&#039;m considering switching because of this. other than that, no side effects, maybe a slight shift in mood... i&#039;m a little more agitated than usual."