Determining +opk

[Mummyof4boys]

Hi, can I get some opinions on which test was my first positive opk please. I’ve numbered 1-6 and know 6 definitely is, but unsure if 4 or 5 was positive or not...
Thanks!

[atomic sagebrush]

possibly #2, possibly 3

I know it's confusing but do you see that dark strip on the side? That is as dark as the control line so when it's even just partly as dark, that is counted as a positive.

[barrebabe]

4, 5, and 6 all look positive to me

[atomic sagebrush]

4 5 6 are deffo pos but I think the first one is the one where the small side strip is as dark as the control. :)