... But I was wondering do I start taking the white ones when I do and also if I start with the white will I get my period again when I take the green ones? And also in a few months I'm going on vacation and thats when I'm supposed to have my period and I've heard if I don't take the green ones and keep taking the white it will make it not come is that true? Or what can I do to make sure I don't have it?