I Have PCOS, So My Periods Are SomewhAt Irregular, (usually

I have PCOS, so my periods are somewhAt irregular, (usually 34-40 day cycle).My lmp was Sept. 14,2016. According to fertility app my ovulation date was Oct. 10, 2016. My husband and I had intercourse that night. I am 12 dpo, according to fertility app and due for menstrual cycle to start in 2 days. I have been having bouts of nausea, heartburn, frequent urination, headache and off and on cramping. What are my chances of conception, and when should I do a hpt?