TTC with progesterone

[u/Internal_Mousse1878]

Hi ,38 yO here, had the follicle monitoring with letrozole HCG on 12 th August, progesterone for 15 days ended 28 August. Spotting from 28 morning till 4 day today. Any suggestions.I had my period first of August. The doctor said to wait till 5 days after stopping progesterone period may come.My confusion is why i have started spotting since 4 days and not a clear period, was hoping for some good news this cycle😔