hi, i been on birth control novynette for years but i been taking it wrong, i take it from the 6th day of the period for 21 days then after 3 days my period will start and i take it from the 6th day again, but this cycle i took it from the 8th day of my period, i finish the pack a day ago and I'm suppose to see my period today but nothing, did it delay my period? last month and the month before i took a emergency pill did that cause it to delay as well? i had my period normal the last 2 months