Ok, if anyone could help that would be great I am such a newb so if I ask anything stupid, don't judge!

Ok so I have really long cycles: 45 days, 50 days, 46 days... My doctor said I possibly have PCOS and he will put me on Clomid if I want to. I have been charting my periods on fertility friend and it says I will ovulate september 10th if my periods continue doing what they do. I can't chart temps because I wake up different times everyday. Should I buy those ovulation strips you dip in urine? If I have sex every other day for like the 2 weeks around ovulation do you think that will help? Any help at all would be so appreciated!!!