ttc#1w/pcos

I had un-ovulatory month.. Dr recommended me take progesterone which I have taken many times to bring on AF... but I have been cramping off and all month, like AF wants to come but wont!! Today I have pretty bad cramps.. Im just wondering should I stop the Prog and see if AF shows or do the full 10days?? Will AF come even though I take prog? Usually when I take prog I dont feel like AF is trying to come.. so Im not sure?? Any help would be great!!

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David 26 & Jessica 26
DS: Levi 06/30/06
MC: 14weeks Jan 28/09