COVID-19 Vaccine and Fertility – Take Part in Research-image

COVID-19 Vaccine and Fertility – Take Part in Research

As we approach two years of living in a pandemic, the focus is turning to COVID-19 boosters to ensure the nation stays protected. Whilst there are no known risks to women’s reproductive health of the COVID-19 vaccine, little is known about the effects on menstrual cycles and hormone levels

Throughout the pandemic, we have received countless questions from our community asking for information on the COVID vaccine and fertility, and to date, we have followed the guidance from the Royal College of Obstetricians and Gynaecologists, British Fertility Society and the Association of Reproductive and Clinical Scientists. These governing bodies advise that there is no current evidence that the COVID-19 vaccine affects fertility and people of reproductive age should have the vaccine.


Why research into COVID-19 Vaccine and fertility is needed

Whilst there are no obvious risks to your reproductive health, there have been reports that both COVID-19 infections and the vaccine can cause changes in the menstrual cycle.

It is unknown what exactly causes these changes – so far it has been thought that the stress of living during a pandemic for the past year could explain it. However, there are also theories that the inflammatory response after a COVID-19 infection or vaccination can lead to hormonal changes, which then causes menstrual cycle irregularities.

We need you

We’re looking to bridge the gap in knowledge. If you fit the below criteria, we would like to invite you to take part in our study to investigate the effect of a COVID-19 booster vaccination on menstrual cycles and hormone levels. 

Who can take part?

If you have already had your 1st and 2nd COVID-19 vaccination, and are currently awaiting your booster you’re perfect for this study. You’ll also need to:

1. Have regular periods, are not on a form of hormonal contraception and do not have any pre-existing or chronic conditions which affect your periods 

2. Have already had your 1st and 2nd COVID-19 vaccination

3. Be willing to take two Hertility tests across two consecutive months

4. Be willing to answer a 15-minute questionnaire at the same time as taking your Hertility tests

5. Be willing to show us your vaccination certificate as proof of vaccination

How does it work?

If you’re planning to book your booster vaccination within the next 1-2 months, we will ask you to complete a Hertility test and a study questionnaire before and after your vaccination appointment. These must both be done on day 3 of your period with your booster appointment in between. 

If your booster appointment is scheduled over 2 months away, or you are not planning on getting a booster vaccination, we will ask you to complete two consecutive Hertility tests and questionnaires over 2 months. 

We will then compare the difference in the test results from each group to investigate whether the booster vaccination changes menstrual cycles or the associated hormones.

Register your interest

If you want to help us, please complete this form and we will contact you regarding the next steps. As a thank you, all participants who have not tested in the last 3 months will receive a 50% discount on each test. Any recent customers will receive a complimentary research assessment.



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