"i have been on this birth control for 5 and 1/2 months. the first pack was alright, i had a little breakthrough bleeding for about a week but it stopped and then i had a very nice and light period when it came to the end of the pack. however, since i have started my 2nd pack, i have been on my period nonstop since week 4... it is now week 11. another fun side effect i found is that i have gained a ton of weight. needless to say, i&#039;m switching birth controls."