Missed Period After Childbirth: When to Test for Pregnancy? - Obstetrics and Gynecology

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Menstruation is delayed, and the pregnancy test is negative?


Hello Doctor: My wife gave birth at the end of November last year, and today, February 4th, 2023, she got her period.
During that time, we had sexual intercourse, and then yesterday her period did not arrive.
I bought a pregnancy test, and the result showed one line, indicating she is not pregnant.
I would like to ask how we should handle my wife's situation.
Should we wait a week to see if her period does not come and then buy another pregnancy test, or should we go see a doctor now?

Xiao Wu, 30~39 year old female. Ask Date: 2016/03/10

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, if your period does not arrive after waiting for another week, it is advisable to see a gynecologist.
Wishing you good health.

Reply Date: 2016/03/10

More Info


After childbirth, it is common for women to experience irregular menstrual cycles as their bodies adjust back to pre-pregnancy hormonal levels. In your wife's case, since she gave birth at the end of November and her period returned in early February, it is possible that her cycle is still stabilizing.
When it comes to testing for pregnancy after childbirth, it is generally recommended to wait until at least one week after a missed period to take a home pregnancy test. This is because the levels of human chorionic gonadotropin (hCG), the hormone detected by pregnancy tests, may not be high enough to be detected immediately after conception. If your wife had a normal menstrual cycle prior to pregnancy, you can expect her cycle to gradually return to its regular rhythm, which may take a few months.

If your wife has missed her period and the home pregnancy test shows a negative result, it is advisable to wait a few days and retest. If her period does not arrive within a week or if she continues to experience unusual symptoms (such as nausea, breast tenderness, or fatigue), it would be prudent to consult a healthcare provider. They can perform a more sensitive blood test to check for pregnancy and evaluate any other potential issues.

In addition, it is important to consider that postpartum women can experience various physical and emotional changes. Factors such as breastfeeding can also influence menstrual cycles. Breastfeeding often delays the return of regular ovulation and menstruation due to elevated levels of prolactin, the hormone responsible for milk production. This can lead to longer intervals between periods or even missed periods altogether.

If your wife is breastfeeding and has missed her period, it is possible that her body is still adjusting to the hormonal changes associated with lactation. However, if she is not breastfeeding and continues to experience irregularities, it might be a sign of other underlying issues that need to be addressed.

In summary, here are the steps you can take:
1. Wait and Retest: If your wife has missed her period, wait a week and retest with a home pregnancy test. Ensure that the test is taken with the first morning urine for the most accurate results.

2. Consult a Doctor: If the second test is also negative and her period still does not arrive, or if she has any concerning symptoms, schedule an appointment with a healthcare provider. They can perform a blood test and provide guidance on what to expect postpartum.

3. Monitor Symptoms: Keep track of any other symptoms your wife may be experiencing. This information can be helpful for the healthcare provider in determining the next steps.

4. Consider Breastfeeding Effects: If your wife is breastfeeding, understand that this can affect her menstrual cycle and may lead to missed periods.

5. Emotional Support: The postpartum period can be challenging both physically and emotionally. Ensure that your wife has the support she needs during this time.

In conclusion, while it is common for menstrual cycles to be irregular after childbirth, it is important to monitor your wife's situation closely and seek medical advice if necessary. This will help ensure her health and well-being during this transitional period.

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Dr. Cao Guotao reply Obstetrics and Gynecology
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