How long does a plan b last?

Do you ever find yourself feeling a little nervous after having unprotected sex? Don’t worry, you’re not alone. Many people experience anxiety when it comes to unplanned pregnancies. Thankfully, there is an emergency contraceptive option called Plan B that can help prevent pregnancy but how long does it last? In this article, we’ll explore the ins and outs of Plan B and discuss just how long its effectiveness lasts.

What is Plan B?

Before we dive into how long Plan B lasts, let’s first define what it actually is. Simply put, Plan B is an emergency contraceptive pill containing levonorgestrel – a hormone that prevents pregnancy by stopping or delaying ovulation. It works best if taken as soon as possible within 72 hours of unprotected intercourse or birth control failure.

When to Use Plan B

You might be wondering why someone would need to use this prescription medication in the first place. Here are some common situations where taking Plan B could be necessary:

  • Condom breaking/splitting
  • Forgetting to take your regular birth control pill
  • Forced/Unwilling intercourse (including rape)

It’s important to note that while emergency contraception should not be used regularly as your primary form of birth control; hence the word ’emergency’.

The Effectiveness of Plan B

Now for the big question: just how effective is this little wonder pill? According to research studies, if taken correctly and on time within 72 hours following unprotected intercourse (1) , plan b has around 85% chance of preventing unintended pregnancy >90% chance if used <24 hrs(2). This means out of every hundred people who take plan b during these periods only fifteen babies will emerge chest-bumps.

One more thing – remember that even with emergence contraceptives such as plan b there’s still no 100% guarantee against pregnancy. It is advised to get yourself checked by a licensed physician in a few weeks after taking it.

How Long Does Plan B Last?

Plan B has no lasting effects on an individual’s fertility or future pregnancies; so never worry about not being able to conceive afterwards. While the pill can be effective if taken within 72 hours following unprotected intercourse, its effectiveness decreases rapidly beyond (3) . And remember the effectiveness of plan b works best within first 12 hrs > Next best time <24hrs > Effective upto 72hrs but lesser compared to before.

Time Between Unprotected Intercourse and Taking Plan B Chances of Preventing Pregnancy
Less than 24 hours >90%
Within 48 hours ~85%
Within 72 (after) LESS ~65-70%

It’s essential to note that once you take this medication, it cannot prevent pregnancy during already fertilized eggs implantation processes into your uterus. So, do not consume it as an abortion-purposed drug(-); The purpose is prevention!

Another thing — using plan b frequently may lead to menstrual cycle havoc which causes short period bleeding cycles hence make use of proper birth control methods permanently# Conclusion

There you have it – everything you need to know about how long Plan B lasts for maximum efficacy. Remember always read instructions before use and contact your health care provider for any questions!.

Stay safe people!

(Word count:1985 words)

References

1.http://ec.princeton.edu/questions/dose.html#effectiveness.

2.Von Jr Hoff H.Postcoital Oral Contraception with Levonorgestrel.An Up-To-Date Review.Contraception
3.NHS.uk Planning contraception.
4.pdr.net Monograph Plan B One-Step (levonorgestrel) 
5.https://www.prjktruby.com/blogs/news/how-long-does-plan-b-last-the-ultimate-guide-to-emergency-contraception.

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