Cervical mucus while using progynova and Periods after stopping progynova

[Apprehensive1]

Hi...i was prescribed progynova 2 mg thrice a day...i had taken it till cd 21 of my cycle...my last lmp was 25th of march....i usually have a 27 or 28 days cycle but today is cd 30 with no signs of periods...i was expecting them last monday...

plus from cd 13 to cd 21 my cervical mucus was egg white and this was the ist time i had egg white cm for so long duration...but now it has dried up and there is no cm for the last couple of days.however there is no sign of period.....my question is can one get pregnant while using progynova and that too with scanty cm towards the end of cycle...