My weeks are off


Can someone help explain why my weeks are being shown like this? My last period was October 29th. I ovulated November 12th. Why is it showing my first week as the week I started my period and not the week I ovulated? When I click on the first week it says about the egg dropping and being unfertilized. One week 2 it says I should be ovulating. So shouldn't week 2 be my week 1? I want an accurate week count.