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Q. Are there specific conditions under which Unwanted 72 can fail?

Answered by
Dr. Sameer Kumar
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Apr 27, 2018 and last reviewed on: Nov 17, 2022

Hello doctor,

I am a 22 year old female. I had my periods on the 2nd of this month. I had unprotected sex on the 10th and took a tablet of Unwanted 72 within an hour of having sex. After five days of taking the tablet, I experienced spotting for two days and very light bleeding on the third day. I have not had my periods since then. What are my chances of getting pregnant? If I am not pregnant, when should I expect my periods? Should I count my cycle from 2nd or 15th, that is, the date when I experienced light bleeding due to pill? Also, could the bleeding that I experienced be implantation bleeding since it was too less? I also took a home pregnancy test on 21st that gave a negative result but I am not sure if I can rely on it. Should I take another pregnancy test?

#

Hello,

Welcome to icliniq.com.

The Unwanted 72 has a success rate of 99 %, so the withdrawal bleed that you experienced on the 15th is more likely to be a pill withdrawal rather than an implantation bleed. Another reason being you were on day 9 of your cycle during your act of sexual intimacy which was within your safe period, presuming that you have regular cycles. However, you may get a serum beta hCG test done to rule out pregnancy if in doubt conclusively. If the hCG levels are less than 3 mIU, then you are surely not pregnant.

If not pregnant, then your next menses shall be by 20-21st of the following month or late by a week to 10 days considering the 15th as your fresh LMP. There can be a delay of seven to 10 days, as it is a known side effect of Unwanted-72 and can be seen for one to two cycles.

Regards.

Hello doctor,

Thank you for your help.

I had an ultrasound on 17th. My ET was 6 mm then. Does this rule out pregnancy? What are the conditions under which Unwanted 72 can fail?

#

Hello,

Welcome back to icliniq.com.

An ET (endometrial thickness) of 6 mm rules out pregnancy on 17th. There are no set conditions as such which are documented but 1 % chances do exist of its failure.


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