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How can I improve my chances of becoming a dad?

It may seem obvious, but you need to have regular sex (2 or 3 times a week) without using contraception if you want to become a dad.

Having sex around the time your partner ovulates (when an egg is released from the ovary) will increase your chances of conceiving.

Read more about trying to get pregnant.

There are also a number of lifestyle changes you can make to improve your chances of becoming a dad.

Sperm temperature

Your testicles are outside your body because, to produce the best quality sperm, they need to be kept cooler than the rest of you (slightly below body temperature).

If you're planning a pregnancy, taking a few simple measures to keep your testicles cool may help. For example, if your job involves working in a hot environment, take regular breaks outside. If you sit still for long periods, get up and move around regularly.

Wearing tight underwear is also thought to increase testicle temperature. Although research has shown that tight underwear does not seem to affect sperm quality, you may want to wear loose-fitting underwear, such as boxer shorts, while trying for a baby.

Smoking

Smoking can affect the quality of sperm, so you should give up smoking if you want to become a dad.

Smoking around a newborn baby also significantly increases their chances of respiratory disease and sudden infant death syndrome (SIDS).

A GP will be able to give you advice and treatment to help you quit smoking.

You can also find more help and advice about how to quit smoking on the Better Health website , or you can call the NHS Smokefree helpline on 0300 123 1044 (9am to 8pm Monday to Friday, 11am to 4pm Saturday and Sunday).

Alcohol

Drinking alcohol excessively can affect the quality of sperm. The UK Chief Medical Officers' recommendation is to drink no more than 14 units of alcohol a week, which should be spread evenly over 3 days or more.

One unit of alcohol is the equivalent of half a pint of beer or lager, or a single pub measure (25ml) of spirits. A small glass of wine (125ml) contains 1.5 units of alcohol.

Read more about alcohol support and alcohol units.

Recreational drugs

Some recreational drugs are known to damage sperm quality and reduce male fertility. These include:

  • cannabis
  • cocaine
  • anabolic steroids

You should avoid taking these types of drugs if you're trying for a baby.

Medicines

Some prescription medicines and medicines you buy from a pharmacy can also affect male fertility.

For example, some chemotherapy medicines can affect fertility, either temporarily or permanently.

Long-term use of some antibiotics can also affect both sperm quality and quantity. But these effects are usually reversed 3 months after stopping the medicine.

Speak to a GP, pharmacist or other healthcare professional if you're taking a medicine and you're unsure whether it could affect your fertility.

Diet, weight and exercise

Eating a healthy, balanced diet and maintaining a healthy weight is essential for keeping your sperm in good condition.

The Eatwell Guide shows that to have a healthy diet you should:

  • eat at least 5 portions of a variety of fruit and vegetables every day (see 5 A Day)
  • base meals on higher fibre starchy foods like potatoes, bread, rice or pasta
  • include some lower-fat dairy or dairy alternatives (such as soya drinks and yoghurts)
  • eat some beans, pulses, fish, eggs, meat and other protein

Having a body mass index (BMI) above 29 may reduce fertility.

If you're overweight and trying for a baby, you should try to lose weight by combining healthy eating with regular exercise.

Stress

Stress can affect your relationship. It can also lower your or your partner's sex drive (libido), which may reduce how often you have sex.

Severe stress may also limit sperm production. So when trying to have a baby, learning to relax and taking steps to reduce the amount of stress in your life will help.

Read more about low sex drive, mental health and breathing exercises for stress.

Getting help

Some people get pregnant quickly, but for others it can take longer. It's a good idea to see a GP if your partner is not pregnant after a year of trying.

Further information

Page last reviewed: 23 October 2023
Next review due: 23 October 2026