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 women search for clear answers about Unwanted 72 side effects, especially its impact on the menstrual cycle. This article explains everything in simple terms: what Unwanted 72 is, how it works, whether it's safe during periods, and what side effects to expect.
Unwanted 72 is a popular emergency contraceptive pill (also known as the morning-after pill) used in India. It contains levonorgestrel 1.5 mg, a synthetic hormone similar to progesterone. It is meant to prevent pregnancy after unprotected sex or contraceptive failure (such as a condom breaking).
Important: Unwanted 72 is not a regular birth control method. It is only a backup option for occasional use.
Unwanted 72 primarily works by:
It is most effective when taken within 24 hours of unprotected sex (up to 95% effective). It can work up to 72 hours (3 days), but effectiveness decreases with time.
Yes, you can safely take Unwanted 72 during your period. It is not harmful or toxic. However, the bigger question is: Do you really need it?
Pregnancy risk during the first few days of periods is usually very low, but not zero — especially with short cycles or early ovulation.
Many believe sex during periods is completely safe. While the chance is low, it is possible 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 typically happens:
Unwanted 72 is generally safe even during menstruation. It does not cause any serious or permanent damage.
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.
The high dose of levonorgestrel can temporarily disturb your natural cycle, leading to:
| Common Unwanted 72 Side Effects on Periods | How Common | Duration |
|---|---|---|
| Spotting or bleeding after period ends | Very common | A few days to a week |
| Longer or heavier bleeding | Common | During current/next cycle |
| Delayed next period (up to 7+ days) | Common | Next cycle |
| Mid-cycle bleeding or irregular periods | Common | Temporary |
| Earlier than expected period | Possible | Next cycle |
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 usually resolve within 1–2 days. Take the pill with food or an anti-nausea medicine if needed. If you vomit within 2–3 hours, consult a doctor — you may need another dose.
Priya had unprotected sex on day 4 of her period and took Unwanted 72 immediately. Her current period continued normally, but she experienced light spotting after a few days and her next period arrived a bit late. Since pregnancy risk was already low, the pill was probably unnecessary in her case.
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.
Take it if:
You probably don’t need it if:
No. It cannot stop or pause a period that has already started. It may only make the flow lighter/heavier or cause additional spotting.:
But it won't "pause" or "cancel" your current period.
Frequent use (more than once in a cycle) is not recommended. It can cause:
Switch to regular contraception (daily pills, IUD, implants, or condoms) for better protection and fewer side effects.
No. There is no evidence that occasional use of Unwanted 72 affects long-term fertility or causes infertility. Your ability to conceive returns to normal quickly. However, repeated use can make periods irregular, which may temporarily make it harder to track ovulation.
Consult a fertility expert or gynecologist if:
Unwanted 72 side effects are mostly temporary — common ones include spotting, delayed periods, nausea, and cycle changes. Taking it during your period is safe but often unnecessary because pregnancy risk is already low at that time.
Emergency pills like Unwanted 72 give you peace of mind in urgent situations, but they are not a substitute for regular contraception. Track your cycle using apps, use reliable birth control methods, and consult a doctor for personalized advice.
Your body deserves knowledge and care — not repeated panic or hormonal disruption.
1. Can I get pregnant if I have sex on Day 4 of my period?
It is unlikely but possible, especially with short or irregular cycles.
2. What if I vomit after taking Unwanted 72?
If within 2–3 hours, consult a doctor — you may need to repeat the dose.
3. Will Unwanted 72 make me infertile?
No, it does not affect long-term fertility.
4. Can I take Unwanted 72 with other medicines?
Some drugs (for epilepsy, TB, or HIV) may reduce its effectiveness. Always check with a pharmacist or doctor.
5. Is Unwanted 72 the same as i-Pill?
Both contain levonorgestrel and work similarly. i-Pill is often considered a trusted brand, but effectiveness depends more on timing than the brand.