Fertility - An overview

What factors influence how fertile you are?

Fertility is a complex area impacted by many factors ranging from our physiological to psychological influences. Some of these factors are too individual so that it is not possible to generalize them. Therefore, Fertilomat is based on the factors that are believed to influence fertility the most and which have undergone an extensive medical research to prove and describe their influence. These factors are:


Women (and men) in their early twenties are the most fertile. When aged between 35 and 40, around one-third of women have problems conceiving, rising to two-thirds when over 40. There are recent studies claiming that the age does not affect fertility as much as previously believed; however, any clear conclusions have not been made yet and Fertilomat therefore relies on previously proven facts.


Being both overweight and underweight can affect hormone levels and cause irregular ovulation (release of an egg from the ovaries). This could lead to problems with fertility.


As well as preparing you for a healthy pregnancy, moderate aerobic exercise (such as walking fast, cycling, playing tennis and jogging) for a couple of hours every week may help you to conceive.

However, excessive vigorous exercise may affect hormone levels and cause irregular ovulation, leading to problems with getting pregnant.

Sexually transmitted diseases

Chlamydia and gonorrhea are the main sexually transmitted diseases that affect fertility. These conditions can damage the fallopian tubes, making it more difficult for an egg to be fertilized.


Studies show that women who smoke may experience changes in their ovaries, fallopian tubes and cervix which might affect the ability to get pregnant.

Ectopic pregnancy (where the fetus implants outside the uterus), early miscarriage and low birth weights in babies is also more common in smokers.

Alcohol intake

While the research is conflicting, some studies have found that women who drink more than two units of alcohol a day decrease their fertility by up to 60 %. At present, there is no evidence that fertility is compromised by moderate drinking (one to two units a day).

Alcohol is not recommended during pregnancy.


Many experts recommend a maximum of two cups of coffee a day (around 200-250 mg of caffeine) when trying to conceive as some studies show that conception is less likely with higher levels of caffeine. Tea, cola drinks, cocoa and energy drinks also contain caffeine.

Studies also show a link between high caffeine intake and miscarriage.

Previous operation on reproductive organs (ovaries, fallopian tubes, cervix and uterus)

Sometimes scar tissue can form after an operation which might affect your ability to get pregnant. If you have had surgery, it is recommended you speak to your doctor or gynaecologist if you are having trouble conceiving.

Polycystic ovary syndrome (PCOS)

The symptoms of PCOS include irregular or no periods, heavy periods, oily skin and acne, excessive facial hair and ovarian cysts. Some women with PCOS are prone to diabetes and may also be overweight.

Irregular ovulation may make it difficult to get pregnant. Your doctor can perform tests to diagnose PCOS.

Pelvic inflammatory disease

This is when the reproductive organs are infected by bacteria travelling through the cervix to the uterus and fallopian tubes. Fertility can be compromised and there is also a higher risk of ectopic pregnancy.

Fallopian tube blockage

Several conditions can cause a partial or full blockage in one or both of the fallopian tubes. As a blockage may prevent the sperm and egg reaching each other, it may result in infertility. A scan can show if you have this condition.


Both type 1 and type 2 diabetes can reduce fertility by causing irregular or absent periods, and sometimes premature menopause. Improved control of the condition can increase the chances of conception.

Thyroid problems

Having an overactive or underactive thyroid can cause irregular ovulation and irregular periods so that it is harder to get pregnant. Your doctor can order a blood test to check your levels.


Some chemotherapy drugs, especially when given at high doses may cause infertility. This happens because the drugs affect your ovaries and stop them from producing eggs. You can check with your doctor if any chemotherapy drugs you had are likely to make you infertile.



High Scores

The following chart shows the highest calculated Ferti-Index by age.


By clicking on the bars, you can cycle back and forth between the overview and the 5 highest Ferti-Indices by age.


How high is your personal Ferti-Index ?

The Ferti-Index is a number between 0 and 90 that provides you with your probability rate for pregnancy.

With the 23-point question catalog, Fertilomat systematically determines your personal Ferti-Index and gives you tips and hints about how you can positively influence your fertility in a targeted manner.


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