I am on the nuvaring and am normally very good with timing! But this month I didn't have one when I needed to put it back in so I was about five days late putting it in. About two weeks after I woke up with really bad pain in my uterus area. It hurts to touch, bend, cough and sneeze. I am feeling nauseas and just not fully with it.. I guess a bit tired. I also have some lower back pain. I took a pregnancy test today and it was negative. Could it be too early to tell?(I took the ring out today also). I don't normally feel how I do when pmsing. Could I be pregnant or is it likely something else?