Ovulate early?

Kim • TTC #3 since March. Have a baby girl born March 2013. Baby boy born March 2016.
Just curious in anyone ovulates really early in their cycle. This is only CD 5 for me and I'm still bleeding lightly. I decided to take an ovulation test after work just so over an early start and don't miss it. Well it came back pretty close which I thought was weird. I took one again just a min ago before bed and it's much lighter, last month I ovulates on day 17 so this a huge difference. And if I did I alraDy missed it?! Keep in mind the top  one has had 5 hours to dry now.