Forgot to take birth control pills for several days, can I take emergency contraceptive pills instead?
This question is very important because many people take daily birth control pills regularly but “forget for several consecutive days.” When they have unprotected sex, they start to be unsure whether…Should I take emergency contraceptive pills? Will it still be effective?
The answer is: Taking emergency contraceptive pills in this case is advisable
When you forget to take birth control pills for more than 2 days, the hormones in your body will not be sufficient to prevent ovulation. Having sex during this period is at risk of pregnancy. If you have just had sex → Taking emergency contraceptive pills immediately, especially within the first 24 hours, is the best option to reduce the risk in that situation.
Possible effects of taking emergency contraceptive pills after forgetting birth control pills
- Hormonal fluctuations: May cause menstrual irregularities, delays, or early periods
- Mild side effects: Such as nausea, breast tenderness, or mood swings
- Not 100% effective:
- If taken quickly (within 24 hours), it can prevent about 85%
- If more than 72 hours → Effectiveness decreases
- Emergency contraceptive pills are not abortion pills: If pregnancy has already occurred, the pills will not cause an abortion. The mechanism of the pills is to prevent ovulation (not to expel a fertilized egg)
What should be done next?
- Wait for your period in 2–3 weeks: If it comes as usual → Unlikely to be pregnant
- If “missed period” → It is recommended to take a pregnancy test 14 days after having sex
- Start a new pack according to your menstrual cycle, or use condoms for now, then resume your usual birth control method as advised by a doctor
Need advice on contraception or unsure about emergency contraceptive pills? Contact us here
Unplanned Pregnancy Consultation System RSA Online: https://abortion.rsathai.org
or Line Official: @rsathai, Inbox Facebook Page: rsathai
Online consultation service Monday – Friday from 8:00 AM to 7:00 PM.