Started with clear blue advanced digital

opk for first time this month along with Glo. Glo is predicting ovulation date on today but OPK shows just plain circles- low fertility dates for past 4 days and tbh I feel disappointed. AF to start on feb 22 as I have regular cycles. Which means I’m only 13 days away. Glo also pushed my date back after analyzing the log inputs I have been entering which are just plain circles. Don’t feel anything different with my body to show any signs of ovulation. Feeling overwhelmed.