Hi, I was on Depo Provera for almost 4 years, I decided last month that I wasn't going to get my next shot, which was due on aug. 1st. I went and saw my doctor on Aug.26th, she prescribed me progesterone to induce my period, I took it as I was told for 7 days, my doctor said that I would get my period the sunday after the last pill, well now 2 sundays have passed and NO period. I was told to expect extra heavy bleeding, and I have experienced not even a spot of blood. What could possibly be wrong? I read that progesterone doesn't make you ovulate, and when I went to the doctor on the 26th they told me I wasn't pregnant, what do you think the chances of that changing in 20 days are? Please help, very concerned.