NEVER go by Glow's prediction!!!!

Okay, before temping & OPKs, I was going by predictions & CM. I've always assumed I ovulated CD15-18, give or take a day or whatever. Glow was telling me this month (after having a 5 day late period) that I O'd CD20. I've been testing since CD12. This morning's test seemed like O day was about a day away. I tested again this evening, after two minutes, still not positive. So I throw it away, but something tells me to grab it out the trash can like 10 minutes later (when I'm actually supposed to read it 🙄) & low & behold. CD 14, same color! so I'll probably be ovulating tomorrow or the day after. Glow was sooooo off. And my CM is watery. Thankfully I'm using Preseed, so baby dust! & USE OPKS, it really makes a difference!!!