At what time limit do you check opks?

[hopefulfor1st]

I looked at it a couple of minutes after it was done and barely a line, come back another 5 mins later and there was a good (but not positive) line.
Are they like hpts where you can't look after 10 minutes? I'm guessing not since people keep them throughout their cycle to show progression?

 

[hopettc3]

I have the wondfo opks and the instructions say to check it at exactly 5 min.

 

[Tigerlily01]

I have the wondfo opks and the instructions say to check it at exactly 5 min.

^^^same here. I think they can dry darker, so I would follow the instructions exactly.

 

[Mrs Dragonfly]

I also use the wondfos and they say 5 minutes, after that I usually toss them out.

 

[lilmackate]

I look at both 5 and 10 minutes.

 

[Ariannda]

I dont have a problem with not knowing, my line is either lighter than or darker than the control with the wondfo, and they turn up right away as well