Hoping for a bundle of joy? Identifying your most fertile days is the best place to start. The Clearblue Advanced Digital Ovulation Test is more accurate than calendar and temperature methods at predicting the most fertile days[3].The Clearblue Advanced Digital Ovulation Test (Prueba de Ovulacion Advanced Digital) provides clear, digital results and typically identifies 4 or more fertile days[1] by tracking 2 key fertility hormones (estrogen and LH). Each ovulation test kit includes 10 individually wrapped ovulation test sticks with an absorbent tip that can be used directly in your urine stream or dipped into a sample of urine in a clean, dry container. Maximize your chances of getting pregnant naturally with the Clearblue Advanced Digital Ovulation Test, which identifies both your high and peak fertile days. So, when you see that digital smiley face in the result window, you know it's your best time to try for a baby. Clearblue: Results you can trust.[1] In a study, 4 or more fertile days were identified in 80% of cycles (2012).[2] In first cycle of use, vs. not using ovulation tests.[3] Study of 101 women in the UK comparing a simple calendar method of conducting a test on LH surge day (2011). Ellis JE., et al. Human Reproduction (2011) 26: i76 (O-191).