Pregnancy Test Shows Two Lines After Taking Birth Control Post-Miscarriage? - Obstetrics and Gynecology

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It sounds like you are experiencing a complex situation following your recent miscarriage and subsequent use of birth control. Based on the information you've provided, it is indeed possible that the two lines on your pregnancy test could indicate a new pregnancy, but there are several factors to consider.

First, let's clarify what the two lines on a pregnancy test typically mean. A positive result, indicated by two lines, generally suggests that the hormone human chorionic gonadotropin (hCG) is present in your urine. This hormone is produced during pregnancy, and its levels rise significantly in the early stages. However, if you have recently had a miscarriage, it is also possible that residual hCG from the previous pregnancy could still be present in your system, leading to a positive test result even if you are not currently pregnant.

Given that you took RU486 and a uterine contraction medication, followed by a check-up where your doctor confirmed that the embryo had been expelled, it is crucial to consider the timing of your menstrual cycle. After a miscarriage, it can take some time for your body to return to its normal hormonal rhythm. While many women may expect their period to return within four weeks, this is not a strict rule, and some may experience delays.

You mentioned that you have been taking your birth control pills consistently. If taken correctly, these pills are highly effective at preventing pregnancy. However, no contraceptive method is 100% foolproof. The fact that you had unprotected intercourse on March 15, combined with the timing of your missed period and the positive pregnancy test, raises the possibility of a new pregnancy.

To determine whether you are indeed pregnant or if the test is picking up residual hCG from your previous miscarriage, I recommend the following steps:
1. Consult Your Healthcare Provider: It's essential to follow up with your doctor, especially since you have concerns about your menstrual cycle and the possibility of a new pregnancy. They may recommend a blood test to measure your hCG levels, which can provide more definitive information about whether you are pregnant or if hCG levels are decreasing from your prior pregnancy.

2. Timing of Testing: If you choose to take another home pregnancy test, consider waiting a few days and using first-morning urine for the most accurate result. This is because hCG levels can fluctuate throughout the day, and testing first thing in the morning can provide a more concentrated sample.

3. Monitor Symptoms: Pay attention to any symptoms you may experience, such as changes in your body, unusual cramping, or any signs of complications. If you experience severe pain or heavy bleeding, seek medical attention immediately.

4. Understand Your Cycle: After a miscarriage, your menstrual cycle may take some time to normalize. It’s not uncommon for cycles to be irregular for a few months following a miscarriage.

In summary, while the two lines on your pregnancy test could indicate a new pregnancy, they could also reflect residual hCG from your recent miscarriage. The best course of action is to consult with your healthcare provider for further evaluation and guidance. They can help you navigate this situation and provide the support you need during this time.