Talk to Gynecologist on Pcos , Trying To Conceive

Salam drs, I am having pcos, my lmp was 23 April, my mc is of 26-27 days usually. This was my first cycle of fertility treatment, I have been given trigger shot of ivf m 150 on 8th day of mc, on 12 the day of mc hcg presage, I have been using brotin 1+.5 daily, myxfol tab a day, and taken duphaston from 17 day of mc to 26 the day of mc, tell me when should I perform pregnancy test. How long after cutting duphaston periods come. Plz help, I did hpt today on 21nd may and got negative result. Mostly I get period 4-5 days earlier every cycle. Is this delay in period normal and is due to fasting in ramzan or I should repeat test after few days. Plz reply, posting again.