progesterone suppositories

This is my first time on website, this is my 4th cycle on clomid 150mg, I have been taking my temperatures and they are still elevated today's CD 34, progesterone level on day 21-23.5. My question is can progesterone suppositories prevent menstruation if I am not pregnant, or will my period come no matter what even with suppositories? I had some small brown discharge on day 29-32, my period never came, the discharge is gone, I will take a test on Saturday.
Is this possible to be preventing my menstraution?

abbey