Could I be pregnant or is my mind playing tricks on me?

TTC since the end of April. Stopped BC and had my last period May 6-11th. Day 37 in the cycle, no sign of period coming. (Unsure of how long my cycle is since it's the first month off BC for 7 years- but doctor assured me at family planning appointment it should be the most regular within the first couple months off) I'm having fatigue, headaches, random back aches, loss of appetite, and for about a week and a half now I've had random twinges in my right ovary.. But they come and go. I don't have any nausea and my boobs are not hurting. Any thoughts??