Hi doc I have pcos. Ttc for past 2 yrs. Used to periods through progesterone tabs. From my LMP we planned an IUI. Had a dominant follicle in my right ovary. When the follicle reached a size of 18mm I got an HCG shot on 14th day and did IUI on the very next day. And had unprotected sex on 16th day. On 17th day scan showed the follicle have ruptured. I missed my period and its been 4 days took a home test not with 1st urine but 3rd or 4th and it came negative. I started duphaston for 5 days. Any chances of pregnancy? Or not why no periods even after ovulation. And I ovulated on my 15th day.