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Negative pregnancy test after a missed period. What to do?

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

Patient's Query

Hello doctor,

We had sexual contact on the last day of her period without ejaculation, and after 48 hrs exactly, she took emergency contraceptive pills, and in the next expected period, it did not happen. Four days after, we did the quantitative and qualitative tests. Ten days after the scheduled time, we did a home test, all came back negative, and after two weeks, we missed the period, and we did another quantitative blood test that came back negative. We heard about something called the hook effect or molar pregnancy that may confuse the test. Would that apply to the quantitative test too, and what should we do now anyway. She has been on medication that produced breast milk for two months or three with the regular period before.

Answered by Dr. Reetika

Hello,

Welcome to icliniq.com.

I fully understand your concern and will surely help you. See let me explain that to you, for getting pregnant, and the sperms have to be ejaculated inside the vagina of the female. The sperms then need to fertilize an egg which then should get implanted in the uterus of the female. When all this happens successfully, then the female is said to have conceived. In your case, although you guys did not respond to ejaculation, even precum contains some sperm, which in some rare cases can cause pregnancy. However, the egg is generally available during the ovulation period of the female and definitely not available on the last day of the period. In view of the above two aspects, the pregnancy is difficult in your case. Also then you took an emergency contraceptive pill within 48 hrs which is fine, and hence you are safe from pregnancy. Let me just explain to you that the emergency contraceptive pill works in three different phases. Firstly, it prevents the release of an egg from the ovary. Secondly, it prevents fertilization of the egg if already released. Thirdly it prevents the implantation of fertilized egg if at all it was already there. So you are safe from pregnancy, and breastfeeding mothers also miss periods. In addition, the emergency contraceptive pill are hormone-based, and they have this known side effect of delaying periods in certain females for 10 days to two weeks.

Thank you.

Patient's Query

Thank you doctor for the reply,

It has been more than two weeks now, and we are still missing out on the period of almost 18 days.

Answered by Dr. Reetika

Hello,

Welcome back to icliniq.com

As you have done repeated qualitative pregnancy tests and all have come negative, and if I understand correctly, you are breastfeeding. The breastfeeding hormone prolactin prevents periods. Also, you had emergency contraceptive pills which are hormone-based and are known to interfere with the menstrual pattern of females. I request you to please share when you are breastfeeding, you are still breastfeeding, and if yes, then how many times in 24 hours. Is your baby exclusively breastfeeding?

Thank you.

Patient's Query

Thank you doctor for the reply,

Actually there is no breastfeeding, it is just some milk from the breast that started with medications three months ago. Although I did breastfeeding for three months the period was regular and tests were qualitative and quantitative.

Answered by Dr. Reetika

Hi,

Welcome back to icliniq.com

Ok, so as of now you are not breastfeeding?

Patient's Query

Thank you doctor for the reply,

That is correct, but I still have some milk in the breasts but less than before.

Answered by Dr. Reetika

Hi,

Welcome back to icliniq.com.

Ok, so no need to worry. Your test reports are fine. I request if you can share that.

Thank you.

Patient's Query

Thank you doctor for the reply,

I apologize, I need to inform that milking has stopped a week ago. These are the attachments.

Answered by Dr. Reetika

Hi,

Welcome back to icliniq.com.

You are not pregnant. You are having irregular or delayed period because of breastfeeding which causes irregular ovulation.

Thank you.

Answered byDr. Reetika

Medically reviewed byiCliniq medical review team

Published At April 24, 2021
Reviewed AtJuly 12, 2024

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

Dr. Reetika
Dr. Reetika

Obstetrics and Gynecology

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