Cd 18 no LH surge

Kelli

I’m supposed to start clomid next month and wanted to try one more time before I start. So I started my OPK again. I always had my surge during the predicted window but this month still no surge or even high LH for the past 6 days. I’m feeling kind of off too. Not sure why just different and moody. Is it possible I ovulated early? Or I’m going to ovulate late? My cycle is usually 26-28 days