All pregnancies begins with conception. A child is conceived when the male sperm successfully fertilises the female egg. Successful fertilisation is most likely during a 24-hour period following the L.H. surge.

Since this window is only open once a month and for a short period of time, being able to predict the L.H surge is very helpful when trying to become pregnant.

We have selected these ovulation tests for their price, accuracy and reliability. All our tests look for the presence of L.H. in urine.