I just got off a provera period two days ago. My doctor prescribed it for ten days but I didn't have to take the full ten. I took it for four days, started my period the fifth. It lasted six days, and was heavy and miserable. Then on the fifth day of my cycle started my first round of clomid... Tomorrows my last dose! Next period is due around December 8th and I'm going to test on December 12th.