Pregnancy and baby

Fertility tests

If you've tried unsuccessfully to get pregnant for a year or more through regular unprotected sex, it’s time to see your GP. If you're a woman over 35, or if you think that either partner may have a fertility problem, see your GP after six months of trying.

A fertility problem could be because you've had surgery that may have affected your reproductive organs, or because you've had a sexually transmitted infection (STI), such as chlamydia, that may have damaged your fertility.

Many couples with fertility problems go on to conceive, with or without fertility treatment.

What to expect

If you make an appointment to see your GP because you're having trouble becoming pregnant, they will ask how long you’ve been trying. If it's been less than a year or you haven’t been having unprotected sex regularly, and there is no reason to suspect you may have a fertility problem, your GP may recommend you keep trying for a while to see if you conceive naturally. Having regular sex means having sex every two or three days throughout the month. You can find out more about maximising your chances of getting pregnant.

If you've been having regular unprotected sex for more than a year, your GP may recommend a range of tests to determine what's stopping you from conceiving.

Fertility tests

This page lists some of the most common initial fertility tests. Your GP can refer you for these tests, which will usually happen in hospital or at a fertility clinic.

Sperm test

In about one-third of cases, fertility problems are due to the male partner. Sometimes, a lack of sperm or sperm that are not moving properly can cause a failure to conceive. Your GP can arrange a sperm test. The male partner will be asked to produce a sperm sample and take it for analysis, probably at your local hospital.

Blood tests to check ovulation

Levels of hormones in a woman's blood are closely linked to ovulation, when the ovaries release an egg into the fallopian tubes. Hormone imbalances can cause ovulation problems, and a blood test can help determine whether this is happening. Going through a phase of not having periods, or having irregular periods, are also signs of ovulation problems. The most common cause of ovulation problems is polycystic ovary syndrome.

Test for chlamydia

Chlamydia is the most common STI in the UK. It can cause pelvic inflammatory disease and fertility problems. Your GP can refer you for a test for chlamydia. This can be a urine test or a vaginal swab. Find out more about getting a test for chlamydia

Ultrasound scan

An ultrasound scan can be carried out to check the woman's ovaries, womb and fallopian tubes. In a transvaginal ultrasound scan, which takes place in hospital, a small ultrasound probe is placed in the vagina. This scan can help doctors check the health of your ovaries and womb.

Certain conditions that can affect the womb, such as endometriosis and fibroids, can prevent pregnancy from happening. The scan can also check for blockages in your fallopian tubes (the tubes that connect the ovaries and the womb), which may be stopping eggs from travelling along the tubes and into the womb.

X-ray of fallopian tubes

This is called a hysterosalpingogram (HSG). Opaque dye is injected through the cervix while you have an X-ray. The dye will help your doctors to see if there are any blockages in your fallopian tubes. Blockages can prevent eggs passing down the tubes to the womb, and so stop pregnancy occurring. Find out more about testing for and diagnosing infertility problems.

What's next?

These tests will uncover a cause in around 80% of cases of persistent failure to become pregnant. In the remaining 20% of cases, no clear cause can be found.

Whether or not a clear cause is found, your GP can talk you through the next steps. This may include referral to a fertility clinic for further investigation or treatment. 

Find out more about the treatments offered at fertility clinics in Fertility treatments.

Healthtalkonline has articles and videos of women talking about their experiences of infertility and assisted conception.


Page last reviewed: 30/09/2014

Next review due: 30/09/2016

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The 2 comments posted are personal views. Any information they give has not been checked and may not be accurate.

NoBody88 said on 14 October 2014

Hi, I feel horrible because in 2011 I was pregnant and had a abortion...its now 2014 and I'm ready to have a child. I've been having unprotected sex with my partner for more than 6 months now and I haven't conceive I only had the abortion because I was forced to have the un wanted sex at the time and I feel horrible because I'm starting to think that may be why I'm not getting pregnant now. I really want kids I really want to be a mom I feel useless as a woman growing up wanting a family of my own just to find out I messed it up my self probably from having the abortion. I am 26 & my bf is 31 he has a daughter...i love her and kids period I just really want to know what's wrong but to scared to set up a appointment I don't want to hear that I'm not able to have kids and I'm crying as I type this because I really want my own family one day. I'm so scared and upset at myself someone please give me good advice, I feel horrible because now I may never have a child.

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NixSA said on 15 November 2012

How long is the process from when the Dr refer you to the hospital, till the Hospital contacts you for the testing?

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Media last reviewed: 23/04/2014

Next review due: 23/04/2016