Hi my periods date is 28 every month .i had sex on 5th jan..n taken unwanted 72 tab and I pill both tab ...after 34 hrs of sex ...I do not get my periods on this moth so I visit gyanacologist...n test urine pregrency test  but it was negative... I was test prega  news on 2 feb also but it was nigative....i also done internal sonography on 31 Jan...but no pregrency detected..but doc say there is follicular cyst in ovrin......but for my periods doc give me regestrone  tab 3 tab for 3 days. ...but ..today is 4 feb but my periods still not come...what to do plz help...is there any chances of pregrency...we do not want pregrency...plz help....what is reason behind delay periods