Whats going on? Sex 9-3 (none prior 1m.+) PMS symptoms 9-10 slight cramping for 2 hrs +- 9/10. Cycles are approx. 36 days long. Ttc period due 10-5

Hard to say. Not sure exactly what you are asking but if you are trying to get pregnant and you have a 36 day cycle with your period due on 10-5 then you would be ovulating around 9-21. Try using a home ovulation kit available at any pharmacy to confirm. Remember that ovulation occurs 14 days before your next cycle.