question about ovulating and conceiving

Hi everyone, I was just wondering, as some of you know I have PCO, and back in Nov. I started for first time the treatment of Femara and Ovidrel, I did femara like for two months, only one Shot of the Ovidrel, I stopped due to the cost of medication. Before that, I was not seeing my period for more than 7 months, and now after I did those medication I'm starting to see my period since Nov. Dec and Jan, this time it came late. Do you think, I can be ovulating with no problem, and I know I took also Metformin like once or two times, I've been so not stable in my medication. But My question is about, do you think I can still conceive, Also, back in Dec I had intercourse prior to my period, do you think that' s why this time it came late, or will I be pregnant even though I had it. one weird symptom I have is a pain in my nipples. I hope someone can help.