Patient's question:
My period hasn't arrived this month, and it has already been more than 7 days. I tested with a pregnancy test strip, which showed a weak positive result. However, when I got an ultrasound at the hospital, the results indicated an enlarged uterus, adnexitis, and a dark spot on the adnexa, with an unknown size. I had sexual intercourse last month and took emergency contraception afterward. But the ultrasound results did not show pregnancy. Could you please explain why this is the case?Additional Question: However, I had an abdominal ultrasound, which may not be comprehensive. Could emergency contraception affect the onset of menstruation? Could it affect the pregnancy test results?
Doctor's answer:
A weak positive result suggests it is likely that you are pregnant. Currently, the hCG level is still low. As time passes, hCG will gradually increase, and it will turn into a strong positive. If you test again and get a negative result, that would indicate a false positive. It is recommended to continue testing for hCG or have a color Doppler ultrasound in 3 weeks, which generally can provide a clear diagnosis. It is also suggested to observe if your next menstrual period arrives on time. If it is delayed, you should test for human chorionic gonadotropin.