OV test help!

Izzy

Has someone has similar experience with their OPK tests having pretty dark second lines? I’m CD 16 today and I cannot tell if any of these are positive/negative or if I’ll be getting a darker result within the next few days. My expected Ov date according to Glow is Saturday the 27th, would I have a positive by now? This is my first month using OPKs and my second month TTC baby number two. I’m not really familiar with a OPKs and need some help!