The standard ExSeed kit comes with supplies to test twice. Sperm quality varies naturally, which means that you may have a test that is not ideal on one day, but still have a normal sperm quality. Several factors affect sperm quality including sickness. We, therefore, recommend you test your semen quality twice. This should be more than one week apart and it would be good to test it again one month after. This is also what is recommended by the sperm testing guidelines of the WHO. For this reason we advise not to share your ExSeed kit.