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Ovulation Test FAQ

1. How do ovulation tests work?

An ovulation test can help you to pinpoint your 2 most fertile days in your cycle by detecting a sudden surge in LH in your body. Ovulation usually occurs approximately 24-36 hours after your LH surge. Once this LH surge has been detected having sexual intercourse within the next 48 hours will maximise your chances of getting pregnant. 

Some ovulation tests can detect both estrogen and LH and help to identify around 4 fertile days each cycle. However, the estrogen rise is lower and not as specific.

2. Can ovulation tests maximise my chances of getting pregnant?

The two most fertile days of your cycle are the day that your LH surge is detected; and the day after. By pinpointing these days using an ovulation test, you can maximise your chances of conceiving.

3. When can I start testing?

It is important to know your cycle length so that you know when to start testing. Your cycle length is the number of days from the first day of your period (note this as day 1) to the day before your next period starts. Once you know your cycle length, use the detailed instructions in your pack to work out when to start testing. If your cycle length varies use your shortest cycle length in the last 6 months. Alternatively, if you do not know your cycle length, start testing at day 10, although you do risk missing your LH surge.

4. What time of day should I use my test?

You can use your test at any time of day, it is best to try to test at the same time each day. It is also important not to urinate for at least 4 hours before testing so that the hormone level in your urine is concentrated enough to detect. You may find it most convenient to test as soon as you wake up in the morning.

5. Do I need to use all of my ovulation tests?

No, once you have detected your hormone surge, you can stop testing and save the remaining tests until your next cycle if required.

6. Can taking medication or having medical conditions affect the result of my test?

Always read the detailed instruction leaflet carefully before you start an ovulation test. Some medicines and medical conditions can affect the test and also affect your cycle length. The instruction leaflet in each test will give you more specific information regarding this.

7. I have just stopped using the hormonal contraception will this affect the results of my ovulation test?

No, this will not affect the results of your test. However, your natural hormonal cycle could be disrupted, causing your cycles to become irregular which could take some time to stabilise.