It's also supposed to be more accurate for women with PCOS. The regular opk don't are supposedly not as accurate.

still a virgin. and thanks!

Unless you are a virgin you should be fine. It does go up very far. It's a bit weird sleeping with it inside your vagina but, when you're trying to make a baby you do what u can.

I don't use tampons... would I still be able to use it?

It fits inside like a tampon and measures your inside temperature when it’s optimum for ovulation..it links to an app on your phone. Apparently it has a 96% success rate of predicting ovulation?!