Cramping w/ No Period

[dawnlight]

My period is 14 days late so I'm assuming that I skipped this last month. This is rare. I've only skipped a period once before in my life because my period is insanely regular (I normally get it within one day of when I expect it). I can think of no reason for why I've skipped: I haven't had sex so I'm definitely not pregnant, I'm not on the pill nor on any other form of medication, I have a normal amount of stress, my eating habits and diet have not changed, I haven't traveled anywhere recently, etc.

This morning, I woke up with some pretty intense cramps. I've heard of minor cramping during ovulation and have even experienced it but this was full-blown, to the point where it hurt to move (this amount of pain is normal for me DURING my period). I thought I was finally getting my period but I didn't. I put on a Icy Hot Patch and it eventually subsided. Nevertheless, this experience has left me a bit confused. I've never heard of anyone experiencing this much pain during ovulation (IF I am ovulating, which, if I had gotten my period last month, I should be). Can anyone maybe shed some light on this matter?