Thanks for the query.
After taking progesterones it may take around 5 to 7 days for occurrence of withdrawal bleeding.
But as it is already 9 days over, the possible causes are:
Both estrogen and progesterone deficiency
As sometimes urine pregnancy test kits may not detect early pregnancy better to go for blood test
for pregnancy which will rule out the possibility.
If test comes negative, with your doctor's advice you can go for one month course of hormonal
pills, after stopping them possibly you can get withdrawal bleeding.