Yeah, the ones with the green handle and I bought 30 of them!! I've read that I works for some ladies but not others. So I'm hoping I o'd and either missed the test or the tests don't work for me. Temp goes up after o and stays up till af comes again so I hope it goes up and stays up for ages!
Ha! Those are the kind that I have, and not to be indelicate, but... they SUCK!
I never got a positive on mine, and only ever got a faint line during three days of my cycle. I bought 30, too, but used loads of them already hoping they'd tell me SOMETHING. Going to buy something different next time around, I think. Glad to know I'm not the only one they don't work for.