Should I get Plan B to be safe after intercourse using withdrawal? #814/9

My boyfriend and I had sex for the first time yesterday. We were not planning this, so we didn’t have protection. He went inside me for a few seconds and drew back, but did not ejaculate inside me. He eventually ejaculated on my abdomen area (and I’m pretty sure nothing went near my vaginal area).


Should I get the morning after pill to be safe? I just don’t want to deal with the side-effects of the pill.  Some advice would be of great help.


Thanks so much.

Used perfectly, your risk of pregnancy using withdrawal JUST ONCE is about 1 in 2,000.  This is pretty low IF HE WITHDREW BEFORE ANY EJACULATION GOT INTO YOUR VAGINA. 


You can use this risk of pregnancy in deciding about using Plan B if he is sure he did not come into your vagina.


1 million of the 10 million women, who have intercourse each night and don’t want to become pregnant, will use no contraceptive (10%).


Were a condom used correctly by a woman tonight her risk of pregnancy would be 1 in 4,000.


Were withdrawal used correctly tonight by a woman (as was the case for you and your boyfriend, I think) her risk of pregnancy from that one act of intercourse would be 1 in 2,000.  Here is how that 1 in 2,000 risk is calculated:

  • The perfect user failure rate for withdrawal is 4 pregnancies among 100 couples using withdrawal for a year PERFECTLY… no mistakes.
  • This means 4 pregnancies in 100 couples having intercourse about 80 times a year or 4 pregnancies from 100 X 80 in 8,000 acts of intercourse.
  • 4/8,000 = 1/2,000
  • A couple using withdrawal perfectly ONCE has a risk of 1 in 2,000 of becoming pregnant. 

Outercourse would lead to zero (0) pregnancies.


Key Words:  sex, no protection, withdrawal, ejaculation, abdomen, vagina, Plan B, risk, pregnancy, condom, outercourse, effectiveness


Helpful Books:

Contraceptive Technology 20th Edition

Managing Contraception, 2014-2015

Choices 2013

Posted 8-23-2009, Updated 10-1-2009, Updated 9-14-2009, Updated 8-26-2014


Posted on

August 26, 2014