Are you releasing eggs monthly?

Ovulation is when one or more eggs are released from one of your ovaries. This happens towards the end of the time you are fertile between period. Each month, between 15 and 20 eggs mature inside your ovaries. The ripest egg is released and swept into one of your fallopian tubes. Your fallopian tubes connect your ovaries to your uterus (womb).


To become pregnant naturally, one of your eggs and your partner’s sperm have to meet in your fallopian tube. Your egg survives no more than 24 hours after you’ve ovulated. So the meeting of egg and sperm has to occur within this time.However, sperm can survive for up to seven days. They’ll happily live in your vagina, uterus or fallopian tubes for this length of time.This means that you don’t have to time sex to the exact moment you ovulate to get pregnant. You actually have a fertile window of about six days.

Why carry out day 21 progesterone test?

A progesterone test measures the amount of the hormone progesterone in a blood sample. Progesterone is a female hormone produced by the ovaries during release of a mature egg from an ovary (ovulation). Progesterone helps prepare the lining of the uterus (endometrium) to receive the egg if it becomes fertilized by a sperm. If the egg is not fertilized, progesterone levels drop and menstrual bleeding follows.Progesterone level increases after ovulation and peak at day 21 of the menstrual cycle. The level of progesterone level at day 21 can therefore be an indication of whether ovulation has occurred.

How much is the fee?

The fee for the test is £75.

What are the preconditions for the test?

If you are using contraceptive, you should stop using it, wait till the first cycle starts prior to doing the test.

Why choose this fertility test?

This is a good test for women who have irregular periods to check if they are ovulating. It is also a good proxy test for those who suspect they may have PCOS as PCOS may mean that ovulation is not happening. Further investigations can then be carried out.

When should I do this test?

You should come in on day 21. The first day of your menstrual cycle is the first day of your period (day 1).

When will the result be available?

The test result will be available in 1 day. We will forward the result to you by e mail and follow up with a phone call.

What to do next?

Should the test result raise issues, we will explore different options with you.

How can I arrange this test?

Just give us a call – 0207 096 0283. We can make arrangements for you straight away.

We have a wealth of experience in fertility treatment for both males & females at TCM Healthcare – contact us to find the best solution for your situation.Call us on: 0207 096 0283


Professor Shun Au OBE
TCM Healthcare Fertility Clinic
We offer a Fast and efficient service. Most tests can be organised either on the same day or in one day if pre-test conditions are met. Most test results will be available between 1 and 3 days. All tests are carried out by reputable laboratories in this field. The test results will be accepted by any doctor or clinic in the world. Test reports will be forwarded to you promptly. We will follow up with a call to explain the result and explore the bigger picture with you. We work with a range of clinics and will help you navigate the landscape of fertility services.