Hi, I'm Dr. Sarah, an OB-GYN with over 10 years of experience in women's health. I'm here to provide you with accurate and compassionate information.

It's great that you're asking about birth control and pregnancy. It shows you're taking charge of your reproductive health. So let's get to your question: Can you get pregnant while on birth control pills?

The short answer is yes, it is possible to get pregnant while on birth control pills, but it's not common if you're taking them correctly. Let me explain.

How Effective are Birth Control Pills?

Birth control pills, when used perfectly, are 99% effective. This means that out of 100 women using the pill perfectly for a year, less than one will get pregnant. However, in reality, the typical use effectiveness is around 91%. This difference in effectiveness highlights the importance of understanding how to use the pill correctly and consistently.

**What Can Make Birth Control Pills Less Effective?**

Several factors can decrease the effectiveness of birth control pills:

* Missing Pills: This is one of the most common reasons for unintended pregnancies while on the pill. Missing even one pill, especially during certain times in your cycle, can increase your risk.
* Taking Pills at Inconsistent Times: The hormones in birth control pills work best when taken around the same time each day. Large variations in timing can affect their effectiveness.
* Vomiting or Diarrhea: If you experience severe vomiting or diarrhea within a few hours of taking your pill, your body may not fully absorb the hormones, potentially reducing its effectiveness.
* Certain Medications: Some medications, including certain antibiotics, antifungal medications, and anti-seizure drugs, can interfere with how your body processes birth control pills, making them less effective.
* Herbal Supplements: St. John's wort, a popular herbal supplement, has been shown to decrease the effectiveness of birth control pills.

Important Considerations:

* Starting Your Period on the Pill: It's important to note that you are not protected from pregnancy immediately when you start the pill. Typically, you need to use a backup method of contraception, such as condoms, for the first 7 days of pill use, unless your healthcare provider advises otherwise.
* Emergency Contraception: If you've had unprotected sex or are concerned about a possible birth control failure (like a missed pill), emergency contraception is available. Options include the morning-after pill (available over the counter) or a copper IUD (inserted by a healthcare provider).

**What Should You Do if You Think You Might Be Pregnant While on the Pill?**

If you're on the pill and experience any signs of pregnancy, such as a missed period, breast tenderness, nausea, or fatigue, it's crucial to take a pregnancy test and consult with your healthcare provider as soon as possible.

Open Communication is Key:

Remember, it's essential to have open and honest communication with your healthcare provider about your medical history, medications, and lifestyle. This information allows them to help you choose the safest and most effective birth control method for your individual needs.

Don't hesitate to reach out to your doctor or a trusted healthcare professional if you have any questions or concerns about birth control, pregnancy, or your reproductive health. Your health and well-being are paramount!

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With typical use, birth control is about 91 percent effective. Despite these high percentages, it's still possible for you to get pregnant. Birth control failure is often the result of missing two or more pills in a row. Without the constant supply of hormones, you may begin ovulating.read more >>