I've been taking Estelle HBC (I'm in Australia) for about 2 years now, mainly to help clear up my skin and make my periods a bit lighter. But one thing that I'm finding extremely frustrating is how long it takes for my period to come. I take my last pill on a Friday around 6pm; it's now Wednesday morning and STILL no period. How come? is this normal? I usually will either get it sometime today or even tomorrow. My period normally lasts maybe 3 days. It's just strange because I have to start my next pack on Saturday night - is that OK to do when I'm in the middle of my period?