Irregular Periods: When to Seek Medical Advice - Obstetrics and Gynecology

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Strange menstrual period?


Hello, Dr.
Wei: Last time I consulted you about my issue, and you advised me to see a doctor.
However, my pregnancy test result came back negative.
The doctor also administered a menstrual induction injection, but it has been five days since the injection, and my period still hasn't arrived.
I would like to ask if the pregnancy test could be inaccurate, meaning I might still be pregnant, or if the effect of the menstrual induction injection is insufficient? I am quite anxious and hope you can answer my questions again! Thank you.

Xiao T Mei, 10~19 year old female. Ask Date: 2003/02/19

Dr. Wei Fumao reply Obstetrics and Gynecology


Please wait a few more days.
Generally, after the injection, the period will come as soon as within a week, but in some cases, it may take up to ten days.

Reply Date: 2003/02/19

More Info


When it comes to irregular periods, it can be quite concerning, especially when you've already taken steps to address the issue, such as visiting a doctor and receiving a medication like a menstrual induction injection. It’s understandable to feel anxious when your period does not arrive as expected, especially after such interventions.

First, let's discuss the pregnancy test. Home pregnancy tests are generally quite reliable, especially if taken after a missed period. However, false negatives can occur, particularly if the test is taken too early. If you tested before your expected period or if your hormone levels are not high enough yet, the test may not detect pregnancy. If you suspect you could still be pregnant, it might be worth repeating the test a few days later or consulting your doctor for a blood test, which can detect lower levels of the pregnancy hormone hCG (human chorionic gonadotropin).

Regarding the menstrual induction injection, it's important to understand that these medications can take some time to work. The timing of your menstrual cycle can be influenced by various factors, including stress, hormonal imbalances, and underlying health conditions. If you received the injection five days ago and your period has not yet started, it may still be too early to expect results. Some women may take longer to respond to the medication, and it can vary from person to person.

If your period does not start within a week or so after the injection, or if you experience any unusual symptoms such as severe pain, heavy bleeding, or other concerning signs, it is crucial to follow up with your healthcare provider. They may want to perform additional tests or evaluations to determine the underlying cause of your irregular periods and to ensure that there are no other health issues at play.

Irregular periods can be caused by a variety of factors, including hormonal imbalances, stress, significant weight changes, polycystic ovary syndrome (PCOS), thyroid issues, and more. It’s essential to keep an open line of communication with your healthcare provider about your symptoms and any changes you experience. They can help you navigate through this and determine the best course of action.

In summary, while it can be frustrating and anxiety-inducing to deal with irregular periods and the uncertainty of pregnancy, it’s important to give the medication some time to work and to monitor your symptoms closely. If you have any doubts or concerns, don’t hesitate to reach out to your healthcare provider for further guidance. They are there to help you understand your body and to provide the necessary support during this time.

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