Ovulation advice please?

So i recently started <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> with ovulation test and I took one last week and it was really faint. Well I have been moving and completely forgot about tracking but I’m four days late and I took one today and it was darker than last week. Could I have missed my peak and it’s darker from just ovulating or could I be close to ovulation? And could I ovulate this late with my period being late?