I had IVF 2 months back and the embryos were frozen last cycle my endometrium thickness on day was 3.5 mm with the progynova and oestogel it increased to only 5.2mm and the fet was cancelled and then my doctor told me to use duphaston for 14 days and then take letrozole for 5 days.this month also on day 7 my endometrium thickness is 3.5mm only.before this my et was never such thin.will fet will be cancelled this month also? Are any there any chances that my et will develop to 8 mm so that fet can be done?