Hey, so I'm starting my birth control over again tomorrow. I didn't get to have any BC pills for 2 weeks because of the pricing, but anyways, my period is supposed to be coming in 15 days, but for my birth control pills (the ones that kind of jump start my period) I'm not gonna be able to take them until 21 days (my BC pills last for 28 days). And I'm nervous that my period will be off. Can anyone help me, I'm kinda confused as to what to do?