Help please

Kia

How to know if you have pcos would they be able to know by a transvaginal ultrasound or Pap test ? I am struggle to get pregnant. My last pregnancy was 13 yrs ago . I just started to take ovulation test . I have long periods sometimes lasting for a little over 10 days of bleeding . I went and got my Pap test everything is normal . I got transvaginal ultrasound test everything’s normal . Normal uterus. No fibroids no cyst . So what can be the problem ? Is it because I’m just missing my ovulation dates . Also with my partner we don’t have sex all the time because of these long periods because it can get messy . Please help