Confused...

Okay so I ovulated 6 days ago, and here recently I have been SO exhausted. No matter what I do to give myself natural energy, I just dont have any energy... at all. I've even tried some caffeine! And nothing is helping... I literally just want to lay in bed all day long. I felt this same way when I was pregnant before and I have been waking up early in the morning to pee like I did with my previous pregnancy. But it has to be way too early to be having any of these symptoms, right??