I am on cd 28 i am normally about a 34 day cycle but this month was odd. About 1 week aftet my period i had some brown spotting a few days. I was taking mucinex for a cold so i figured maybe the mucinex just cleaned everything out i started taking opks last week when glow said it was my green week as the months prior i took them all month long to watch for cycle patterns and glow has always been right about my fertile window and peak days so anyway i am now a few days past my peak day and i bever got a positive opk. I took one last night and forgot to look at it after 10 mins and there was a very dark but skinny evap line that could be mistaken for a positive so when i took my test today i usually wash out the same cup and keep it in my bathroom but my phone rang and i rushed out to answer and forgot about the test anout 20 mins after i took it i remembered and went to take a look and it looked darker than my other tests had been and there was a little bit of urine left in the cup so i used a second test with that same urine and it is clearly not positive again. I know not to look at tests past their time but i wondered if anyone had used these internet cheapies and thought they took a little longer than the 10 mins to show full positive? In the past months i have seen the line gradually get darker and get very dark but never exactly as dark as the control line with these tests i just assumed i was missing the right timing when testing but maybe they always take onger than 10mins to develop? Anyway the lighter test on top is at 10 mins the darker on the bottom is about 20 both taken with the same urine. You dont have to bother commenting to tell me its invalid after 10 mins i already know this i am just wondering if anyone had personal experience like this bc these tests are starting to stress me out