hi maggie,
yasmin and many other brands of birth control pills can have a negative effect on serotonin levels in the brain,if you have a problem with depression already then birth control pills will probably make it worse. if you just stop taking the pill then you will probably have a "withdrawl bleed" after about 4 days but that is probably the lesser of the 2 evils. your depression could well get worse if you stay on yasmin for the rest of the pack. get yourself a good vitamin b complex with some additional B6 and magnesium and drink loads of water,yasmin has quite a strong diuretic in it which is great if you suffer from water retention but can cause havoc with your psychological state if you do not drink enough water,again depleting your serotonin levels by becoming dehydrated. i drink about 2 - 2.5 litres of water a day. i am sure that once you stop taking the yasmin your moods will lift up again.