ovulating testing everyday for the last 2 1/2 weeks BFN every time, my period is due in 12 days. My ovulation tests only ever show one line how is this normal? there's not even a faint line at all. I've tried a few different brands to see. it's the same every time. Im really worried that i done ovulate or something? i have regular periods and don't get heavy bleeding/cramps, so that's a good sign? any ideas girls x