What do fertility tests actually check? Your plain-English guide
AMH, progesterone, HSG, semen analysis... Here is what the common fertility tests look at, why your doctor orders them, and what they can and cannot tell you.
By PreggieLover 3 min read
Blood forms, scan appointments and a list of acronyms that sound like airport codes. If your doctor has just handed you a stack of test requests, you are not alone in feeling a little lost. Below are the questions women most often ask about the standard fertility work-up, answered in plain words. Your own clinic may use slightly different tests or names, so always check with them.
Why do I need so many tests?
Conceiving needs several things to line up: an egg released each cycle, healthy sperm, open fallopian tubes so egg and sperm can meet, and a womb ready to welcome an embryo. Each test looks at one piece of that picture. Most couples have a few tests before anyone talks about treatment.
Am I ovulating? The progesterone test
Progesterone rises after you release an egg. A blood test taken about seven days before your expected period (often called a day 21 test in a 28-day cycle) shows whether ovulation is likely to have happened. If your cycles are longer or irregular, the timing changes, so ask your clinic which day suits you. One low result does not mean you never ovulate; the test may be repeated.
What is AMH, and should it scare me?
Anti-Müllerian hormone (AMH) gives an idea of your ovarian reserve, meaning roughly how many eggs remain. It is useful for planning treatment such as IVF. What it does not do is tell you whether you will conceive naturally this month or this year. Many women with a lower AMH conceive, and a higher AMH can be linked with PCOS. Please do not let one number define your hope.
What about FSH, LH, thyroid and prolactin?
- FSH and LH are hormones that guide your ovaries. They are usually checked early in the cycle.
- Thyroid function matters because an underactive or overactive thyroid can affect cycles and pregnancy.
- Prolactin is checked if periods are irregular, as raised levels can interfere with ovulation.
You may also be checked for rubella immunity, and screened for infections such as chlamydia, HIV and hepatitis, especially before treatment. These are routine and are not a judgement on you.
What will the scan show?
A pelvic ultrasound, usually internal, looks at the shape of your womb, the lining, and your ovaries. It can spot fibroids, polyps, cysts or the many small follicles sometimes seen with PCOS. Some clinics also count the small resting follicles (an antral follicle count) as another view of ovarian reserve.
How do they check my tubes?
Common options include an HSG, where dye is passed through the cervix and watched on X-ray, or a HyCoSy, which uses fluid and ultrasound. Both are usually done after your period ends and before ovulation. They can be uncomfortable, a bit like strong period cramps, so ask whether to take a simple painkiller beforehand and bring a pad. Sometimes a laparoscopy (keyhole surgery) is suggested, particularly if endometriosis is suspected.
Does my husband need testing too?
Yes. Male factors play a part in a large share of couples' fertility difficulties, so a semen analysis is a standard early test, not an accusation. It looks at sperm count, movement and shape. If you are on this journey without a partner, your clinic will talk with you about donor options and the tests relevant to you.
How do I cope while waiting for results?
Waiting for numbers that feel like verdicts is hard. A few things help:
- Ask when and how results will be shared, so you are not checking your inbox every hour.
- Agree with your partner or a friend how you will hear them together.
- Write down what each result might change, so a number becomes a next step rather than a sentence.
“The heart of the prudent getteth knowledge; and the ear of the wise seeketh knowledge” (Proverbs 18:15). Understanding your tests is not a lack of trust. It is good stewardship of the body God has given you, and it helps you take part in decisions instead of feeling swept along.
A prayer while the results are pending
Father, I hand You every blood test and every scan. Whatever the numbers say, You are still good and I am still Yours. Give my doctors wisdom, give me courage, and let Your peace sit gently on me while I wait. Amen.
Frequently asked questions
Does a low AMH mean I cannot get pregnant?
No. AMH gives an idea of how many eggs remain and helps plan treatment, but it does not predict whether you will conceive naturally. Talk through your result with your doctor.
When should a progesterone test be done?
Usually about seven days before your expected period, which is day 21 in a 28-day cycle. If your cycles are longer or irregular, ask your clinic for the right day.
Is an HSG test painful?
Many women feel cramping similar to strong period pain, which usually settles quickly. Ask your clinic whether to take a simple painkiller beforehand, and bring a pad for afterwards.
This article is for general information and encouragement, not medical advice. Please talk to your doctor or midwife about your own health and your baby's.
