does clearblue pregnancy test work
How do Clearblue Pregnancy Tests work? When you are pregnant, your body produces the pregnancy hormone hCG (human Chorionic Gonadotrophin). The level of hCG doubles approximately every 24 hours in the first weeks, reaching a maximum at around 7 to 12 weeks into the pregnancy. Clearblue pregnancy tests work by detecting tiny amounts of the pregnancy hormone in your urine and are over 99% accurate from the day your period is due.