Is this what an evap looks like?

Tiffany
Took a test this morning and left it on the counter. Forgot to go back and check within the time frame. I went in the bathroom and saw it about 2 hours later.  I know it's out of the time frame but never had an evap look like this. Only thin lines before. Wish I had another to retest. AF was due the 17th. So several days late.