may be related to hectic life style, recently increased anxiety and stress, strenuous exercise programme and if you are falling in that age then early menopause
after 35yrs, particularly if such history present in other blood relatives.
I think that will restore your menses and by taking it for two-three cycles the cycle will be regularised.
is a synthetic progesterone
and may cause a slight fluid retention and edema in feet but thats temperary. If you have a history of cloting diseases in family you should seek other options.