New to OPKS, advice needed.

Hello all. I am very new to OPKs and testing. I am a nursing mother still, but wanted to start tracking my cycle since it’s been somewhat inconsistent. My first official period was April 4th-12th so my AF is due on the 5th. (4 days away) but I’m still getting these tests that show I’m at my highest peak. Is this normal before period?

Top was two days ago, and bottom was yesterday.

Also I’ve taken a HGC test every morning and they’re all coming up very negative. Any thoughts and advice help.

I haven’t tested (ovulation) yet today, but plan to when I have to use the bathroom next.