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HomeAnswersObstetrics and Gynecologyimplantation bleedingMy fiance took Unwanted 72 after having sex. Please help.

Can implantation bleeding happen after taking Unwanted 72?

The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Sameer Kumar

Medically reviewed by

Dr. Nithila. A

Published At May 14, 2019
Reviewed AtMay 31, 2024

Patient's Query

Hello Doctor,

We (me and my fiancee) had unprotected sex on the 11th day of the month (menstruation). I am very sure I did not eject that day. But for safety within 24 hours, she had taken Unwanted 72. Now after 13 days of it, before 1 to 3 days of expected periods. She got bleeding for a full day and continued the next day as well. Blood is of red and brown color.

1. Can you please help me? Is it implantation bleeding or withdrawal bleeding?

2. When did she get her periods?

3. When we will surely come to know there is no pregnancy?

4. When to use a pregnancy test?

Answered by Dr. Sameer Kumar


Welcome to icliniq.com.

It is likely that she has got her withdrawal bleed which can be seen in next 7 to 10 days to post unwanted 72 intakes, however, implantation bleed occurs in next 2 to 3 days and it is often spotting to scanty bleeding and not in the good flow. This can be confirmed by getting a serum beta hCG test (human chorionic gonadotropin test) done which can conclusively rule out pregnancy as well, earliest by 10 days post intercourse. If the hCG levels are less than 3mIU/mL then she is surely not pregnant and the bleed is not an implantation bleed (as it is always a retrospective diagnosis). She would get her menses now only after a month counting from the day of the start of the withdrawal bleed as this bleed marks the day one of the starts of a fresh cycle, for sure her dates would be changed now.

Patient's Query

Thank you, doctor,

Just want to confirm, does hCG mean a pregnancy test kit which we can do at home also by testing urine? When we have to do that? Now or after the bleeding stops?

Answered by Dr. Sameer Kumar


Welcome back to icliniq.com.

It is a blood test which is a gold standard to conclusively rule out pregnancy.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Sameer Kumar
Dr. Sameer Kumar

Obstetrics and Gynecology

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