Hi Guys
i know this has been asked before but i have a couple of questions.

1/ With an opk and the second line, does it only show around o time? or is it always there and just gets darker when oing?

2/ can a opk be used as a hpt? i know this has been asked before but i am just way too tired to locate them here. (the joys of getting up at 5.45am to take nanna around adelaide for app's and only getting home just over an hour ago!)

Thankyou in advance