Need help with ovulation days!

This month I was taking my ovulation tests and on the 11th day of my cycle I went from low to peak day. I then didn't test for another few days and then on the 17th day of my cycle went to peak day again. Today on the 19th day I was back to low fertile. I have heard multiple peak days can detect pregnancy with the digital ovulation kits but then today's low fertile day threw me off. I also did not use my first morning pee.