Ovulation Test - Clearblue Advanced

Hey all I’m so confused I need some help. I had an IUD and I got it removed on Monday afternoon. Before going to my appointment I took an ovulation test on Sunday which showed low fertility. On Monday morning it showed Peak fertility. Of course I couldn’t test the next 48 hours. But then tested the first chance I could. It showed low fertility yesterday. This morning I took another one just to see and I got high fertility. Has this ever happened to anyone else? Thanks in advance!