I have had my period for 2 full weeks nonstop (inclu cramps & back pain) and 2 weeks before that i had strange spotting for a week. went from yasmin to yasmin + just before this occurred because of a shortage of yasmin. should i see a dr or wait?

Vaginal bleeding: It is important to go over your history and perhaps do a few simple tests before assuming that this bleeding pattern is from your oral contraceptive. If your flow has been heavy,a blood count is helpful. We usually make absolutely sure you are not pregnant or have other reasons for the bleeding. Often times,if those things are excluded,we do wait until your body gets used to the pill.