6DPO, 1st cycle of Letrozole and Ovidrel

Does anybody else wear Oura rings? It's detecting I've been having “major strain” in my body for the last 3 days and I've never felt so tired in my life. I feel like I can't stay awake. I don’t feel like I’m sick or anything - just cramping, pressure, and a light headache from time to time but I’m fighting for dear life to stay awake. 😅