Facebook Pixel

Plan B side effects or implantation bleeding?

By November 20, 2015 - 2:47pm
Rate This

The first day of my last period was November 1. On November 9 I went out for a friend's birthday, we had too much to drink and ended up having unprotected sex. The next morning I went out and took Plan B. I track my period on my phone using an app called Clue. That morning, the 10, I saw that I had entered my fertile window and was expected to ovulate on the 14th. Then yesterday, the 19th, I noticed that I was spotting it was light pink and very minimal but was not the same as my normal pre-period spotting. Today it is darker brown but still very minimal. I know that Plan B is very effective when taken within the first 72 hours but I've read that it is less effective on women who have BMI over 25 (mine is about 33). So I guess my question is: is the spotting I am experiencing a side effect of the Plan B or is it implantation bleeding? Any feedback is welcome.

Add a Comment3 Comments

I also want help... So it sounds crazy that I would even be worrying about being pregnant with no penetration and only pre-ejaculate and no ejaculate, but I've read that it's still possible... My boyfriend and I had a lot of genital rubbing and he fingered me really far in on October 28 and October 30. The evening of October 30th I started bleeding (9 days before my expected period) and it was lighter than my usual period with cramps only right before the bleeding. I didn't think anything of it until I looked up things online about how you can still be pregnant without penetration, so I took Plan B One Step on Monday, November 2 just in case it could still do anything. The bleeding stopped pretty much (just small spotting every once in awhile) until Friday when I had cramps and started bleeding again. It was off and on and heavier and ended on Monday. I also experienced extreme sharp pain on the right side of my lower back that made almost the entire right side of my body feel numb-like. During that whole week I also felt sick, but it could've been from stress. I was seriously so stressed. After Monday, November 9th I felt fine until about November 18th, which is about 10 days before my "next" period would start in which Uterus just started feeling weird. Like my normal PMS cramps. And I'm probably psyching myself out but I just feel like I look slightly bigger in the belly but possibly could be from bloating. All I know now is that my uterus just feels heavier and I'm scared. Has anyone had a similar experience (even experiences where you actually had sex lol) and were you pregnant? I stopped taking pregnancy tests last week. They had been negative until that point and I didn't want to get a positive right before thanksgiving. Too much stress.

November 23, 2015 - 10:22am
HERWriter Guide (reply to Gracie 121622)

Hi Gracie
Your risk of pregnancy is extremely low. Your discomfort and irregular bleeding is likely a side effect of taking emergency contraception. Pregnancy tests taken 21 days after sex are generally very accurate.

November 23, 2015 - 4:09pm
HERWriter Guide

Hi jennajens

Thanks for your post!

Plan B is less effective for women over 165 lbs and does not work on women over 180lbs.

We cannot say which kind of bleeding you are having. Since bleeding is a common side effect of Plan B, it could be that. Since light spotting (often light brown or light pink) can indicate implantation, it could be that.

Unfortunately, we can't say which. You can test for pregnancy at the end of the month or early next month.

Good luck!

November 20, 2015 - 3:35pm
Enter the characters shown in the image.
By submitting this form, you agree to EmpowHER's terms of service and privacy policy
Add a Comment

All user-generated information on this site is the opinion of its author only and is not a substitute for medical advice or treatment for any medical conditions. Members and guests are responsible for their own posts and the potential consequences of those posts detailed in our Terms of Service.


Sex 101

Get Email Updates

Health Newsletter

Receive the latest and greatest in women's health and wellness from EmpowHER - for free!