Weird pain??

[Butterfly_Princess]

Hey all,
I woke up with a really bad pain in my right fallopian tube/ovary area. I was laying on my left side, and when i turned over to my right side it went away.
It felt like the area was being stretched to the absolute limits, or like it was going to burst.
It just worried me a bit at the time because it was really painful. The fact it went away when i changed positions makes me feel a bit better about it, but i was just wondering if any ones felt that kind of a pain before?? Or what it could be?
Thanks all. It could just be something really small or silly, but i thought id ask the question any way