Learn what a missed period and white discharge may mean, including pregnancy, other possible causes, when to take a pregnancy test and when to see a doctor.
Dr. Nallapu Siri
A missed period with white discharge can make you wonder whether you are pregnant or whether another change is affecting your menstrual cycle. White vaginal discharge is common throughout the menstrual cycle and may also increase during pregnancy, so discharge alone cannot confirm pregnancy.
This guide explains the possible causes of a missed period and white discharge, how to recognise normal and abnormal discharge, when to take a pregnancy test and when to seek medical advice.
Yes, a missed period and increased white discharge can occur in early pregnancy. Normal pregnancy discharge, called leukorrhoea, is usually thin or milky white, has little or no noticeable smell and does not cause itching, soreness or burning.
Hormonal changes during pregnancy increase blood flow to the vaginal area and can increase vaginal secretions. However, similar changes in discharge can occur at other points in the menstrual cycle. Therefore, white discharge is not a reliable way to confirm pregnancy.
If you think you’re pregnant and your period is late, taking a pregnancy test is the most appropriate way to check.
A missed period can occur with several symptoms, depending on the underlying cause. Early pregnancy may cause:
These symptoms can also occur before menstruation or for other reasons. Having several symptoms together does not confirm pregnancy.
Pregnancy is an important cause of a missed period, but it is not the only one. Several factors can affect the hormones that control ovulation and menstruation.
Significant emotional or physical stress can affect the hormones involved in ovulation and may make your period late or temporarily stop.
Polycystic ovary syndrome (PCOS) can affect ovulation and cause irregular or missed periods. Hormonal changes associated with PCOS may also affect vaginal discharge.
Both an underactive and overactive thyroid can affect menstrual cycles. If your periods remain irregular, your doctor may consider thyroid testing based on your symptoms and medical history.
Starting, stopping or changing hormonal contraception can alter your menstrual pattern. Some contraceptive methods can make periods lighter or cause them to stop altogether.
Changes in body weight, excessive exercise, perimenopause and some medicines can also affect menstrual cycles. Persistent or recurrent missed periods should be assessed by a doctor.
White discharge is often normal, particularly when it is clear or milky white and does not cause irritation or have an unpleasant smell.
The amount and consistency of discharge naturally change during the menstrual cycle. It may become more noticeable around ovulation or at other times because of hormonal changes.
However, changes in colour, smell or texture may indicate an infection.
Thrush can cause thick, white discharge that may resemble cottage cheese. It is commonly associated with itching, soreness, redness or burning.
Bacterial vaginosis can cause thin, greyish-white discharge with a noticeable fishy smell. It does not always cause itching.
Some sexually transmitted infections can cause unusual vaginal discharge, particularly when accompanied by pelvic pain, pain when passing urine, bleeding between periods or pain during sex.
Do not assume that an unusual discharge is caused by pregnancy. If you have symptoms suggesting an infection, see your doctor for an appropriate assessment.
If you think you’re pregnant and your period is late, you can usually take a home urine pregnancy test from the first day of your missed period.
The test detects human chorionic gonadotropin (hCG) in urine. Testing too early can produce a false-negative result because the hCG level may not yet be high enough for the test to detect.
For the most reliable result:
If a repeat test remains negative and your period does not return, speak with your doctor.
A positive home pregnancy test usually means that hCG has been detected and that you are likely to be pregnant.
Arrange antenatal care with your doctor or maternity service. You can discuss folic acid, medicines and supplements, existing health conditions and the timing of recommended antenatal tests.
A blood hCG test or ultrasound may be recommended in certain circumstances, but they are not necessarily required immediately for everyone with a positive home pregnancy test.
Speak with your doctor if:
Seek urgent medical attention if you think you’re pregnant and develop severe or worsening abdominal or pelvic pain, particularly on one side, heavy vaginal bleeding, severe dizziness, fainting or shoulder-tip pain. These symptoms can occur with an ectopic pregnancy.
Avoid self-treating unusual vaginal discharge with antibiotics, antifungal medicines, antiseptics or other vaginal products without knowing the cause. Different conditions can cause similar changes in discharge but may require different treatment.
Avoid douching and scented vaginal washes, sprays or wipes, as these can irritate the vaginal area and affect the natural vaginal environment.
If you think you may be pregnant, speak with your doctor or pharmacist before starting or changing medicines or supplements. If you take regular prescription medicines, do not stop them without medical advice.
A missed period and white discharge can occur in early pregnancy, but both can also happen for reasons unrelated to pregnancy. Normal discharge is generally clear or milky white, has little or no noticeable smell and does not cause itching, soreness or burning.
If you think you’re pregnant and your period is late, take a home pregnancy test at the appropriate time. If the result is negative but your period remains absent, repeat the test after a few days or speak with your doctor. Unusual discharge, persistent pelvic pain or symptoms of infection should also be assessed.
Yes. White or clear discharge can occur normally throughout the menstrual cycle and may increase during pregnancy. It is usually not concerning when it has little or no smell and does not cause itching, soreness or burning.
No. Both can occur in early pregnancy, but they can also occur for other reasons. A pregnancy test is a more reliable way to confirm pregnancy.
Most home pregnancy tests can be used from the first day of a missed period. If you do not know when your period is due, testing at least 21 days after unprotected sex can provide a more reliable result.
Discharge that is yellow, green or grey, has a strong or unpleasant smell, or is accompanied by itching, soreness, burning or pelvic pain may indicate an infection and should be assessed by a doctor.
If the test was taken early, repeat it after a few days. If your period remains absent despite repeated negative tests, speak with your doctor to assess other possible causes of a missed period.
