There are many ways you can track your fertility - from apps to wearable devices to observations you make based on your body including: Ovulation Predictor Kits (OPK) - this measures luteinizing hormone (LH) in urine. The good thing about these kits is that they are widely available and easy to use. The downside is that they don’t work as well for people with PCOS or irregular cycles. Cervical Mucus Tracking: Your cervical fluid changes throughout your cycle. As you near ovulation, it becomes cl