i was on tri-cyclen before i got pregnant. i stopped taking them in june 2006 to get pregnant and i haven't taken them since. i recently started my period december 29th (which was a saturday) and i started my pill pack on december 30th (sunday).
now, i'm in my 'placebo' week and i haven't gotten my period yet!!! i can't remember if it starts right on the first placebo sunday or throughout the placebo week.

what if i don't start my period at all this week?? should i still start my next pill pack this sunday?