It would be better for yoy to contact your doctor,it could be many things,maybe your ovulating,i experienced an eptopic few years ago. as very painful but i experienced other symptoms also,have you taken a pregnancy test.
I can't get hold of my Dr till next week Monday. I did about 7 HP tests and all were BFN
:(
Can you please tell me your other symptoms?
For me I had really bad shoulder tip pain along with the cramping.it was only as we were under going treatment,and i started to bleed that i was scanned and found out it was a tubal pregnancy,at 4-5 weeks gone.the pain was unbearable.we did get positive tests.im sure this isnt what your experiencing.I see your in the uk like myself.you can take yourself up to A+E if you are in alot of pain.they will see you.
Most likely if you took HPT's and they were negative then it's not ectopic. An ectopic should still show up as a pos. hpt. What you could be experience is ovulation pain. Since it has been so long since you had a normal cycle your body may be having a hard time releasing the egg hence the pain. I went 64 days with no period over this past summer and the same thing happened to me. I finally started a couple weeks later. Like tarajanes said though if you are in bad pain go get seen.