HELP IM SO CONFUSED

So I ovulated on Christmas day but I didn’t get my positive ovulation test until

Christmas Day! Doctors confirm

Ovulation. I got my period today! I have PCOS. Is there a reason why I didn’t get my positive opk until the Day I actually ovulated! And why did I not get pregnant? I have a son by my ex husband! My current hubby doesn’t have kids! But we have been trying to conceive for three years when the doctor diagnosed me with PCOS I have regular periods except for maybe once a year I will go with that cycle!