Trying for a baby? Double your chances of getting pregnant [1] with Clearblue Advanced Digital Ovulation kit. The Clearblue Advanced Digital Ovulation Test (Prueba de Ovulacion Advanced Digital Clearblue) provides clear, digital results and typically identifies 4 or more fertile days, at least twice as many as LH-only ovulation tests [2]. You can also track your cycles in our FREE app, designed for use with Clearblue Advanced Digital or Digital Ovulation Tests. The Clearblue Advanced Digital Ovulation Test tracks 2 key fertility hormones, LH and estrogen, to identify both your high and peak fertility days. The Clearblue Advanced Digital Ovulation test sticks have an absorbent tip that can be used directly in your urine stream or dipped into a sample of urine in a clean, dry container.