I was on Dianne 35 for 2 years and started on Yasmin this month. The difference I've noticed is that in the silver section you have to start of Dianne (and when your period is) it's the inactive pills, but with Yasmin in the silver section it's still active pills, the procedure they said I had to follow is that as soon as I take the last active pill of dianne I have to start with Yasmin (in the silver section offcourse) but will this cause me not to have my period this month (or maybe start late) it's the third day I've been on Yasmin and still don't have my period (though with dianne I did start a bit late a couple of times) should I worry if I don't have my period this month? or is it just all part of the change, because I went directly from active dianne pills to active (though it is the silver section) Yasmine pills? I know the possibility is always there that you can be pregnant but is it highly likely that that is the case now (I haven't had sex for the past 2 weeks because I was ill aswell and on anti-biotics)