progesterone question

Bethany
I was prescribed progesterone for lack of periods. My doctor gave me 3 refills for the amount of time we will be on clomid. Do I take progesterone for the 10 days and wait to see if I get my period and then start again with a refill? I will call my dr on Tuesday when they open, but I'm on my last pill tonight and wanted to know what others have done.