The Clearblue Advanced Digital Ovulation Test is the only ovulation test that detects the rise in 2 fertility hormones, estrogen and luteinizing hormone (LH), before ovulation. Have intercourse on High and Peak fertility days to maximize your chances of getting pregnant naturally.
https://www.amazon.com/Clearblue-Ovulation-Predictor-Featuring-Packaging/dp/B00AOJ5R8W