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My period is late with blood clots. What could be the cause?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I had sex during my ovulation with my partner, and my menstruation was delayed for four days. I did a pregnancy test, and it was negative, but later menstruation started with clotted blood. I want to know what may be the cause.

Kindly suggest.

Answered by Dr. Vandana Andrews

Education:

MD

Professional Bio:

Dr. Vandana Andrews is a dedicated General Practitioner and Family Physician specializing in General Medicine. She has expertise in managing acute and chronic illnesses, preventive healthcare, and patient education. Skilled in treating conditions such as diabetes, hypertension, and respiratory infections, Dr. Andrews is known for her compassionate, patient-focused care. She is committed to delivering comprehensive, evidence-based medical services to individuals and families across all age groups.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome to icliniq.com.

I understand your concern.

Having sex around ovulation can sometimes make you more alert to any change in your cycle, but a delayed period followed by a negative pregnancy test and then bleeding with clots is quite common and does not always mean pregnancy.

In many cases, this can happen due to hormonal fluctuations, stress, travel, illness, or even anxiety about a possible pregnancy, all of which can delay ovulation or menstruation.

If ovulation occurred later than expected, the pregnancy test may be negative, and the period may come a few days late and appear heavier or more clotted than usual.

Another possibility is a very early pregnancy that did not continue (chemical pregnancy), where the test is negative by the time bleeding starts, and the body sheds the uterine lining, often with clots.

At 38 years, cycles can also become slightly irregular due to age-related hormonal changes. If the bleeding settles and you feel well, it is usually not serious.

However, if you have very heavy bleeding, severe pain, foul-smelling discharge, dizziness, or if this pattern repeats, it would be wise to see a doctor for evaluation, which may include a pregnancy test, ultrasound, or hormone check for reassurance.

I hope this helps.

For more queries, feel free to reach out to me anytime.

Thank you.

Medically reviewed by iCliniq medical review team
Published At April 4, 2026
Reviewed At April 4, 2026

Education:

MD

Professional Bio:

Dr. Vandana Andrews is a dedicated General Practitioner and Family Physician specializing in General Medicine. She has expertise in managing acute and chronic illnesses, preventive healthcare, and patient education. Skilled in treating conditions such as diabetes, hypertension, and respiratory infections, Dr. Andrews is known for her compassionate, patient-focused care. She is committed to delivering comprehensive, evidence-based medical services to individuals and families across all age groups.

This doctor is not available for online consultations on the platform anymore.

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Late Period with Blood Clots and Hormonal Shifts Awareness Builder

Period late with blood clots?

Five quick questions help you understand common causes, when to monitor, and when to contact a doctor about a delayed period with blood clots.

Private and judgment-free. For guidance only, not a diagnosis.

Education:

MD

Professional Bio:

Dr. Vandana Andrews is a dedicated General Practitioner and Family Physician specializing in General Medicine. She has expertise in managing acute and chronic illnesses, preventive healthcare, and patient education. Skilled in treating conditions such as diabetes, hypertension, and respiratory infections, Dr. Andrews is known for her compassionate, patient-focused care. She is committed to delivering comprehensive, evidence-based medical services to individuals and families across all age groups.

This doctor is not available for online consultations on the platform anymore.

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