Ovulation tests

On 11/1/16 I took a ovulation test and had two dark lines. It is now 11/13/16 and I took another ovulation for laughs and giggles and got a faint line next to the dark line. I had taken a second test to see if that one could have been inaccurate a few hours later and got an even darker line. According to this app my fertile window ended on the 3rd. With it being 13 days later and my cycle being a 29 days long is this even possible?