Missed Birth Control Pill: What to Do for Effective Contraception? - Obstetrics and Gynecology

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Taking emergency contraceptive pills?


Hello, doctor! I have been taking Yaz (21 tablets) for four months.
Yesterday, on May 13th at 10:00 PM, I was supposed to take the first pill of the fifth pack, but I only remembered to take it at 2:00 PM today, which is more than 12 hours late.
I took one pill to catch up, and I plan to take the other pill tonight at 10:00 PM.
1.
Will this still provide contraceptive effectiveness? 2.
If I miss a pill for more than 12 hours, should I take two pills at once immediately or take one pill now and the other at the scheduled time later today? 3.
Should I use backup contraception for the next 7 days (starting from today when I take the two pills) until I finish on the evening of May 20th for extra safety? Thank you very much, doctor!

Mia, 20~29 year old female. Ask Date: 2023/05/14

Dr. Huang Yuande reply Obstetrics and Gynecology


1.
Yes.
2.
It is recommended to take 2 pills the next day to make up for the missed dose from the first day.
3.
No need for that!

Reply Date: 2023/05/14

More Info


When it comes to missed birth control pills, it's essential to understand the implications for effective contraception and the necessary steps to take. In your case, you missed taking your birth control pill (Yaz, which is a combination pill) within the 12-hour window, which can affect its efficacy.

1. Taking the Missed Pill: Since you missed taking your pill for more than 12 hours, the general recommendation is to take the missed pill as soon as you remember. In your case, since you only took one pill after realizing the mistake, you should continue taking your pills as scheduled. However, since you missed the pill for over 12 hours, the contraceptive effectiveness may be compromised. It is advisable to use a backup method of contraception, such as condoms, for at least the next seven days to ensure protection against unintended pregnancy.

2. How to Handle Missed Pills: If you miss a pill and it's been more than 12 hours, you should take the missed pill as soon as you remember. If you remember the missed pill on the same day, you can take it along with your regular pill. If you realize the missed pill the next day, take it immediately and continue with your regular schedule. You do not need to take two pills at once unless specifically instructed by your healthcare provider.
3. Backup Contraception: After missing a pill and taking it late, it is prudent to use a backup method of contraception for the next seven days. This is particularly important if you had unprotected intercourse during the time you missed the pill, as the risk of pregnancy increases. The backup method can be condoms or another form of contraception that you are comfortable with.

4. Understanding Your Cycle: It’s also important to understand how your menstrual cycle works and how hormonal birth control affects it. Combination pills like Yaz work by preventing ovulation, thickening cervical mucus, and thinning the uterine lining. Missing a pill can disrupt this hormonal balance, leading to potential ovulation and, consequently, a risk of pregnancy.

5. Consulting Your Healthcare Provider: If you find yourself frequently missing pills or have concerns about your contraceptive method, it may be beneficial to discuss this with your healthcare provider. They can provide personalized advice and may suggest alternative methods of contraception that may be more suitable for your lifestyle, such as long-acting reversible contraceptives (LARCs) like IUDs or implants, which do not require daily attention.

In summary, since you missed a pill for over 12 hours, you should take the missed pill as soon as you remember, continue with your regular schedule, and use backup contraception for the next seven days to ensure effective protection against pregnancy. If you have any further questions or concerns, do not hesitate to reach out to your healthcare provider for guidance tailored to your specific situation.

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