Im not sure. I didnt have any for almost a year and a half after going off of bc and then they started. I mean I've lost some weight so I don't know if that helped or my body just decided to work all of a sudden.

I personally would probably stop after 7 days of a high result, but I didn't start using opks until I starting having a period on my own so I knew I was ovulating.

I'm not sure. I used that kind this last cycle and I had two high days and on the third day I reached peak. Are you taking any fertility meds?

how did you start having a period on your own?

No fertility meds... Couldn't start Clomid this month because i had two huge cysts on my L ovary. But one or both definitely burst blessing me with a horribly painful second period. My gyno says i might ovulate this month due to the way my R ovary looked. I just don't know when to call it quits with this super expensive OPKs.