please does anyone know roughly how long periods last when your on the pill, i missed one pill, came on my period and the whole reason i went on it, was so i wasnt on this weekend, i came on on wednesday and im still on now, i CANT be on this weekend/next week! please help me!

missing any pills could result in pregnacy and period. as for stopping there is no was of doing so unless you get the pill with a few times a year periods. the body is doing what it does naturally.
I even know a few people who continued to get periods on the pill taken properly. you may want to discuse with your health care provider About a stronger dose pill that seems to help some as well.
best of luck