Going from extremely low to high opk in 16 hours

[Beeches24]

I don't know if I trust OPKs but lately they've all been super low. All read in time frame. I don't know if it's legit but definitely DTD tonight if I have my way.

I don't use that app that gives numbers like that based on your photo (FertilityFriend says they're not accurate) - I just use my eyes as when I get my peak it goes darker than control line. Mine shoots up very quickly too, from faint line to blazing peak.

I didn’t use an app, just relied upon the OPKs and they worked within three cycles every time of my six pregnancies.