Emergency Contraception: Risks of Pregnancy and Medication Effects

Emergency contraceptive pill issues

Hello doctor, I would like to ask about my last menstrual period which was from December 16 to December 21, with an estimated ovulation date on December 31.
I had intercourse on the morning of December 31 around 5 AM, and took a dose of emergency contraception (Ella) at 10 AM on January 2.
Is there a possibility of pregnancy in this situation? If the emergency contraception fails and I become pregnant, will it affect the fetus? Additionally, I have been experiencing shoulder pain and have undergone cervical traction and electrical therapy, and I have also taken ACEO, FENOX, IWELL PTP, and Panadol.
Would these medications affect the fetus if I am pregnant? Thank you.

na, 30~39 year old female. Ask Date: 2018/01/02

Dr. Huang Jianzhong reply Obstetrics and Gynecology

The last menstrual period was from December 16 to December 21, with an estimated ovulation date of December 31.
Intercourse occurred on the early morning of December 31, and a dose of emergency contraception (Ella) was taken at 10 AM on January 2.
Is there a possibility of pregnancy? Answer: Yes, there is a possibility of pregnancy.
If the emergency contraception fails, will it affect the fetus? Answer: No, it will not affect the fetus.
Additionally, there has been recent shoulder pain, and treatments including cervical traction and electrical therapy have been received, along with medications such as ACEO, FENOX, IWELL PTP, and Panadol.
If pregnant, will it affect the fetus? Answer: No, it will not affect the fetus.

Reply Date: 2018/01/02

More Info

When it comes to emergency contraception and the potential risks associated with pregnancy and medication effects, it is essential to understand both the efficacy of emergency contraceptive pills (ECPs) and the implications of taking other medications during early pregnancy.

In your case, you had unprotected intercourse on December 31 and took an emergency contraceptive pill (ECP) called Anliting (Levonorgestrel) the following morning. ECPs are most effective when taken as soon as possible after unprotected intercourse, ideally within 72 hours. Since you took the ECP within this timeframe, it significantly reduces the likelihood of pregnancy. However, no contraceptive method is 100% effective, so there remains a small chance of pregnancy.

If pregnancy does occur despite taking the ECP, it is crucial to consider the medications you have been taking for your shoulder pain, including ACEO, FENOX, IWELL PTP, and Panadol (Paracetamol).
1. Panadol (Paracetamol): This is generally considered safe during pregnancy and is often recommended for pain relief. It falls under FDA category B, indicating that there is no evidence of risk in humans.

2. ACEO and FENOX: These medications are less commonly referenced, and their safety during pregnancy may not be well-documented. It is essential to consult with a healthcare provider regarding these specific medications to understand their potential risks.

3. IWELL PTP: Similar to ACEO and FENOX, the safety profile of this medication during pregnancy should be discussed with your healthcare provider.

4. Physical Therapy Treatments: The traction and electrical therapy you received for your shoulder pain are generally considered safe during early pregnancy. However, it is always best to inform your physical therapist about your potential pregnancy status so they can tailor the treatment accordingly.

If you are concerned about the effects of these medications on a potential pregnancy, it is advisable to consult with your healthcare provider. They can provide personalized advice based on your medical history and the specific medications you are taking.

In summary, while the risk of pregnancy after taking an ECP is low, it is not entirely eliminated. If you suspect you might be pregnant, consider taking a home pregnancy test after a missed period or consulting with your healthcare provider for further evaluation. Additionally, discussing any medications you are currently taking with your healthcare provider will help ensure the safety of both you and your potential pregnancy. Always prioritize open communication with your healthcare team regarding any concerns about medications and their effects during pregnancy.

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