Really long cycle or pregnant?? Can anyone help?

I have pcos and my hubby and I have been ttc for two months. This month my dr prescribed some anti conceptives to bring on my period and then a fertility med to take for the first 5 days after to make me ovulate. Now on day 36 and still no af. Tested on day 33 and got a bfn. Is it possible I'm pregnant and ovulated really late (had some ovulation like symptoms between days 27 and 32)? Any thoughts or advice would be so appreciated! Thank you!!