Natalist OPK/1st time tracking HELPP

Briana

Ladiesss help! This is my first time TTC keyword here is trying. I have an almost 10 year old now! I have never used OPKs and im concerned this brand sucks?? Glow says ovulation is the 22nd. I started testing the 17th and the test line was fairly dark but not as dark. It got lighter the next few times and today I got this.. I feel clueless with these. Maybe I need strips?? Is this even a positive?? Hellpp so clueless lol thank you!!!