Ovulation Test Help

A

So a little back story, I got my Nexplanon removed September 26th, I ovulated or Im at least 9000% sure I did (Cramping & correct type of CM for it) October 11th. I took this tonight, the 29th, (Ovulation test, my first one ever). So if everything was normal as it should've been, I would've gotten my period Wednesday the 25th (of last week) but absolutely no sign of it besides cramping since then & all bfn's. It wouldn't be a problem if I got a bfp, in fact that's why I got off of my BC so we could start TTC. Just curious as to why the line on this ovulation test would be so visible if I ovulated almost 3 weeks ago? Yes I know for ovulation tests the lines have to be equally as dark lol and this was also taken well in the time frame, a0bout 4 minutes.. Just looking for a little insight. By the way, posted in just a few groups I thought this would fit best in. Thanks in advance!