I am on day 17 of my cycle and felt really strange this afternoon. I suddenly developed a bad stomach ache - not cramping or period pains, just a tummy ache, like if you've eaten something a bit rotten, and felt sick.
This isn't the first time it's happened.. last month roughly the same time of the month (ovulation time) I felt exactly the same... it lasted a few hours then I felt better.
It could, of course, be pure coincidence.
btw I have had 2 babies and am 40. Anyone else get the same or know what it might be?