Clear blue ovulation test

I have irregular period I decided to start tracking to see when I ovulate. I tested 3xs on the third day I got a smiley face but that same day I started my period which was 9 days late from my last cycle. I wanted to try and test again later that day but after you get a smiley face you can't use it again and I still have 7 strips left .. Any recommendation on better opk test ? I need to track frequently because of my crazy cycles