Well I've been using the infamous yasmin pills for 6 months and everything was OK at first, but lately I'm feeling dizzy, I have headaches, nausea, depression and sporadic mood swings which have caused troubles with my boyfriend, we've talked about this and we've decided that It'd be better for me to change my birth control method I want to try Ortho Evra patches, but right now I'm on my 13th day of my menstrual cycle, ... so do I have to wait until my cycle ends or can just change my birth control method right away?