Patient's question:
My period hasn't come this month, and it has already been more than 7 days. I tested with a pregnancy test strip, and the result was weak positive. However, when I got an ultrasound at the hospital, the results showed an enlarged uterus, adnexitis, and a dark spot on the adnexa, but I don't know how big it is. I had sexual intercourse last month and took emergency contraception afterward, but the ultrasound results did not show pregnancy. Why is this?First follow-up question: But I had an abdominal ultrasound, which might not be comprehensive. Can emergency contraception affect the onset of menstruation? Can it affect the pregnancy test results?
Doctor's answer:
A weak positive result suggests it is likely pregnancy. 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 means it is a false positive. It is recommended to continue testing hCG or do a color ultrasound after 3 weeks, which can usually 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.