Patient's question:
I had my period on the 12th, with a cycle of 28 days. I had sex with my husband on the 24th and 26th. My period hasn't arrived yet, but this morning, I used a pregnancy test and it showed negative. How is that possible?Onset time and cause of illness:
Treatment status:
I really want to get pregnant, what should I do?
Help needed:
Am I pregnant? How accurate is the pregnancy test?
Doctor's answer:
Testing in the morning and evening may have some impact on the results. Urine in the morning generally has the highest HCG level, so many instructions recommend testing after getting up in the morning, but this is not absolute. Pay attention to the length of urine immersion in the test paper when testing. Sometimes, if the urine immerses the test paper for too long, it may make it difficult to interpret the test results. Do not judge pregnancy based on the test results if you have been pregnant recently. Because HCG can remain positive for a long time after pregnancy termination (delivery, natural miscarriage, or induced abortion).