This easy to read Clearblue Digital Ovulation Test accurately pinpoints your 2 most fertile days each cycle, so you can maximise your chances of getting pregnant naturally. There are only a few days each cycle when a woman can conceive, the days leading up to and including the day of ovulation. But cycles are variable and so is the timing of ovulation, which means that one in two women could be trying to conceive at the wrong time of the cycle. These simple urine tests are over 99 per cent accurate at detecting the rise in a key fertility hormone (luteinising hormone) 24-36 hours before ovulation. A clear smiley face appears in the digital display when your LH surge has been detected, so you know this day and the following day are your best 2 days to try for a baby. For women whose cycles are variable, it can be especially challenging to accurately detect the timing of the 2 best days to get pregnant. Features: Pinpoints 2 most fertile days Adapts to her unique hormone levels every time she tests Unmistakably clear digital results Specifications: Dimensions: H:13.0 x W:2.0 x D:1.0 cm Colour: White Model Number: CBOBASE