Does drinking alcohol affect your fertility?

Does drinking alcohol affect fertility?
If you drink while trying to get pregnant, you may find it harder to conceive. You don’t need to drink large amounts of alcohol for this to happen. If you’re trying to get pregnant, it’s best to not drink at all.
Drinking alcohol before pregnancy doesn’t just reduce your chance of conceiving. It can also lead to an increased risk of your baby being born early or at a lower than ideal birth weight .
Can I drink while I’m pregnant?
If you’re pregnant then the recommendations for drinking alcohol are clear. The UK’s Department of Health and Social Care advises that you should avoid alcohol altogether. This is because, if you drink early in your pregnancy it can increase your risk of miscarriage.
There is also a greater chance that your baby might have health issues. These can include:
- having a low birth weight
- being born too early (premature)
- having foetal alcohol spectrum disorder (a group of health conditions resulting from being exposed to alcohol in the womb)
Sadly, drinking during pregnancy may also increase the risk that your baby could be stillborn. So it’s very important to completely avoid alcohol during your pregnancy.
Why might alcohol make it harder to get pregnant?
If you’re trying to get pregnant, there are lots of ways alcohol can reduce your fertility. These include:
- changing your levels of oestrogen – a female reproductive hormone
- changes to ovulation, which can reduce your chance of getting pregnant
If you have polycystic ovary syndrome (PCOS), reducing alcohol is also a good idea. This is because drinking too much alcohol can cause you to put on weight or affect your blood sugar levels. Both of these can worsen symptoms of PCOS. Some evidence suggests weight loss can improve fertility outcomes if you have PCOS, so cutting back on alcohol may help with this.
Does alcohol affect sperm?
Alcohol can reduce testosterone. Testosterone is a sex hormone that affects how your body functions, including your fertility. Having less testosterone can reduce the quality and quantity of your sperm. The positive thing is that improvements in sperm happen quite quickly after you reduce your alcohol intake.
We also know that if you regularly drink alcohol in the months before your partner becomes pregnant your baby has a higher risk of health complications.
Heavy drinking seems to cause these issues more than light drinking. But any amount of drinking comes with risks. So, ideally both you and your partner should avoid alcohol completely once you start trying to conceive. If you do choose to drink, aim to limit your alcohol consumption as much as possible.
Can alcohol affect my health when pregnant?
Your health before and during pregnancy has a big role to play in the future health of your child. Being as healthy as possible going into pregnancy can reduce your risk of complications. Drinking alcohol can increase your risk of obesity and high blood pressure. These conditions can make it harder for your body to cope with the demands of being pregnant.
So, if you’re planning to get pregnant in the next three to six months, try to make healthy lifestyle choices where possible. As well as avoiding alcohol, this might include moving more and eating a balanced diet. You might also speak to your doctor about managing any ongoing health conditions you have.
How much is too much alcohol?
The odd drink for a special occasion is unlikely to cause any issues in the run up to pregnancy. If you’ve found out your pregnant but were previously drinking regularly, the main thing is to avoid alcohol from now on. See your doctor or midwife with any concerns you may have.
If you have any concerns about the amount of alcohol you’re drinking and are planning a pregnancy, then consider contacting a GP. You’ll be able to get support to help you manage any issues you have with alcohol before becoming pregnant.
Do you know how healthy you truly are? Bupa health assessments give you a clear overview of your health and a view of any future health risks. You'll receive a personal lifestyle action plan with health goals to reach for a happier, healthier you.
-
Sources Sources
- Alcohol and your health. Drinkaware. www.drinkaware.co.uk, accessed 9 January 2025
- Is Alcohol harming your fertility? Drinkaware. www.drinkaware.co.uk, accessed 9 January 2025
- Guidance. Chapter 12: Alcohol. Department of Health and Social Care. GOV.UK, updated November 2021
- What is Foetal Alcohol Spectrum Disorder (FASD)? FASD Network UK. Fasdnetwork.org, accessed 9 January 2025
- Alcohol and Pregnancy. Drinkaware. www.drinkaware.co.uk, accessed 3 February 2022
- Alcohol and fertility. Alcohol Change UK. Alcoholchange.org.uk, accessed 9 January 2025
- Heertum K and Rossi B. Alcohol and fertility. How much is too much? Fertil Res Pract. 2017; 3:10
- Nyjkaer C et al. Maternal alcohol intake prior to and during pregnancy and the risk of adverse birth outcomes: evidence from a British cohort. Journal of epidemiology and community health, 2013:68:6
- Sanghavi M and Rutherford J. Cardiovascular physiology of pregnancy. Circulation, 2014;130:1003-1008
- Moll U, Olsson H and Landin-Olsson M. Women with a predisposition for diabetes have an increased risk of pregnancy complications, especially in combination with pregestational overweight. BMC Pregnancy and Childbirth, 2020 ;20
- Being overweight during pregnancy. March of Dimes. Marchofdimes.org, last reviewed March 2020
- Kesmodel U, Wisborg K, Olsen S et al. Moderate alcohol intake during pregnancy and the risk of stillbirth and death in the first year of life. American journal of epidemiology, 2002;155:305-312
- Management of polycystic ovary syndrome, NICE. www.nice.org.uk, revised July 2024
- Legro R, Dodson, W, Kunselman A et al. Benefit of delayed fertility treatment with preconception weight loss over immediate therapy in obese women with PCOS. Journal of clinical endocrinal metabolism, 2016;101:2658-2666
- Zhou Q et al. Association of Preconception Paternal Alcohol Consumption With Increased Fetal Birth Defect Risk. AMA Pediatr. 2021;175(7):742-743. doi:10.1001/jamapediatrics.2021.0291
About our health information
At Bupa we produce a wealth of free health information for you and your family. This is because we believe that trustworthy information is essential in helping you make better decisions about your health and wellbeing.
Our information has been awarded the PIF TICK for trustworthy health information. It also follows the principles of the The Information Standard.

More general health advice articles
Did you find our advice helpful?
We’d love to hear what you think. Our short survey takes just a few minutes to complete and helps us to keep improving our healthy lifestyle articles.
Legal disclaimer
This information was published by Bupa's Health Content Team and is based on reputable sources of medical evidence. It has been reviewed by appropriate medical or clinical professionals and deemed accurate on the date of review. Photos are only for illustrative purposes and do not reflect every presentation of a condition.
Any information about a treatment or procedure is generic, and does not necessarily describe that treatment or procedure as delivered by Bupa or its associated providers.
The information contained on this page and in any third party websites referred to on this page is not intended nor implied to be a substitute for professional medical advice nor is it intended to be for medical diagnosis or treatment. Third party websites are not owned or controlled by Bupa and any individual may be able to access and post messages on them. Bupa is not responsible for the content or availability of these third party websites. We do not accept advertising on this page.