
Dr. Aruna Ashok MBBS, MS OG, DNB OG
- Clinical Director
If you're wondering what happens if we take Unwanted 72 during periods, you're not alone. Many people are unsure about how emergency contraceptive pills work, especially during their menstrual cycle. This article breaks it down clearly, allowing you to understand what Unwanted 72 is, how it works, and what to expect if you take it during your menstrual cycle.
Unwanted 72 is an emergency contraceptive pill. It's designed to prevent pregnancy after unprotected sex or contraceptive failure (like a condom tearing). The active ingredient in this pill is levonorgestrel, a synthetic hormone similar to the natural hormone progesterone.
Think of Unwanted 72 as a backup—not a regular birth control method. It's meant for occasional use when your usual protection fails.
Unwanted 72 works mainly in three ways, depending on where you are in your menstrual cycle:
The effectiveness is highest when taken within 24 hours after unprotected sex. It can still work up to 72 hours (3 days) later, but the sooner you take it, the better.
Yes, you can take Unwanted 72 during your period, but the real question is: Do you need to?
Let's understand the science and real-life impact.
Many people believe that having sex during periods is "safe." While the chances of getting pregnant during menstruation are very low, it's not impossible—especially if:
So, if you have sex towards the end of your period and ovulate early, there's a slim chance of pregnancy.
Here's what could happen:
Unwanted 72 is generally safe, even if taken during your period. It's not toxic, and you won't be harmed physically by taking it at that time.
But if you were not at risk of getting pregnant (for example, you were on Day 1 or 2 of your cycle), then taking the pill might have been unnecessary.
Even though you're on your period, the high dose of hormones in Unwanted 72 can disrupt your natural cycle.
Some possible side effects:
Why does this happen? Because the hormone levonorgestrel sends mixed signals to your body, confusing your menstrual cycle.
Even if taken during menstruation, you might still experience common side effects of Unwanted 72:
These are short-term and typically resolve within a day or two.
If you're taking Unwanted 72 after the risk window (say more than 72 hours after sex), it won't be effective—even if you're on your period.
Timing is crucial. Period or no period, if you're outside the window, the pill won't do its job.
Let's say Priya had unprotected sex on the 4th day of her period. She panicked and took Unwanted 72 a few hours later. Here's what might happen:
But since she was already on her period—and assuming she doesn't ovulate very early—her actual risk of pregnancy was relatively low. She likely didn't need the pill.
Taking Unwanted 72 is a good idea if:
If your period just ended or you have irregular cycles, it's harder to track ovulation—so using Unwanted 72 may still be reasonable in those cases.
If your period just ended or you have irregular cycles, it's harder to track ovulation—so using Unwanted 72 may still be reasonable in those cases.You likely don't need Unwanted 72 if:
Remember: Taking the pill unnecessarily adds hormones to your body, which could affect your cycle and make tracking it harder.
Unwanted 72 does not stop a period that has already started. However, because of the hormone surge, it can:
But it won't "pause" or "cancel" your current period.
Let's be clear: Unwanted 72 is not for regular use. Taking it multiple times in one cycle—or even more than once in a week—can:
If you find yourself using emergency contraception often, it's time to consider a regular birth control method like pills, IUDs, or implants.
There's no evidence that Unwanted 72 affects your long-term fertility. It doesn't reduce your ability to have children later. But frequent use may mess up your periods, making it harder to predict ovulation.
For peace of mind and regular cycles, it's better to use consistent birth control.
Even though Unwanted 72 is available over the counter, talk to a healthcare provider if:
Sometimes, a simple blood test or ultrasound can give clarity.
So, Unwanted 72 Side Effects: Key Risks to Understand In most cases, nothing dangerous. But it might have been unnecessary, especially if the risk of pregnancy was already low.
Here's what you can remember:
Emergency pills like Unwanted 72 are safe and effective, but knowing when and how to use them is key. If you're taking it during your period, understand that while it won't hurt you, it might not have been needed at all.
Tracking your cycle, using regular birth control, and staying informed can help you feel more in control. After all, your body deserves knowledge—not panic.
1. Can I get pregnant if I have sex on Day 4 of my period?
It's unlikely, but not impossible—especially if you have a short or irregular cycle.
2. What if I vomit after taking Unwanted 72?
If you vomit within 2 hours, you should take another pill. Otherwise, it has likely been absorbed.
3. Will Unwanted 72 make me infertile?
No. It doesn't affect long-term fertility.
4. Can I take it with other medications?
Some medications (like those for epilepsy or TB) may reduce their effectiveness. Check with a pharmacist or doctor.