Progesterone 10 days. Where is AF?

Due to pcos and irregular cycle, my RE put me on 10 days progesterone so that I get AF and do necessary blood tests on 2/3rd day and HSG test after bleeding stops. I got withdrawl light bleeding and spotting during last 4 tablets. My q is whether this is ok and will I bleed properly now or not? Its so confusing. It has been 4 days since I stopped my tablets and no bleeding yet😁. Any help anyone?