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A 25-year-old female asked:

The day after having unprotected sex i took the plan b pill, 5 days later i started spotting light red/pink, is this implantation bleeding?

1 doctor answer1 doctor weighed in
Dr. Derek Haas
Specializes in Fertility Medicine
Probably not: The plan B pill is a high dose of progesterone which makes your uterine lining incompatible with a potential embryo. That high dose of progesterone can also cause your lining to be more friable and likely to bleed. It's very common to have irregular spotting when you take plan B. Less likely to be implantation bleeding.
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Related questions

A 24-year-old female asked:
I had bright red spotting for 3 days after sex. It has stopped now. Could it be implantation bleeding from having sex a week or so ago?
Dr. Robert Killian
General Practice 30 years experience
Implanting bleeding: In general bleeding that soon after sex is not implantation bleeding. Any further answer here would be pure speculation since you did not include any... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 24-year-old member asked:
4 days of red bleeding followed by 10days of pink spotting could that be implantation bleeding?
Dr. James Marquardt
Obstetrics and Gynecology 45 years experience
Unlikely: This is not the typical pattern for implantation bleeding. Most spotting and bleeding that occurs during the menstrual cycle can not be assessed witho... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 27-year-old female asked:
My cycle isn't for another wk or 2. I'm spotting dark red and it's not heavy. Could this be implantation bleeding?
Dr. Gerard Honore
Fertility Medicine 31 years experience
Breakthrough: It's probably breakthrough bleeding, can't say for sure 'why' over the internet. 'implantation bleeding' is all the rage online now, but it's over-rat... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 21-year-old female asked:
Light pink spotting after protected sex (jun24) that lasted a couple of hours, what does it mean? also had unprotected sex (june14) but took plan b, is that implantation or something different??
Dr. John Berryman
Obstetrics and Gynecology 56 years experience
"Plan B" will cause light bleeding or spotting (if NOT pregnant) two or three days after taking Plan B, similar to that of implantation. Plan B is n... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 24-year-old female asked:
Hello. I have a ? I had unprotected sex took a next day pill and a day later I bleed again for 5/days.this happens in April Now in may I should of started my period on the 1st today's the 8th and I been spotting for 2days really lite pink.and I have may
Dr. Matt Wachsman
A Verified Doctoranswered
Internal Medicine 38 years experience
Cannot say: there is a small chance of pregnancy BUT there's a 100% chance that the next day pill changed your hormonal balance. Pregnancy tests are effective at ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Apr 26, 2019

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