Patient's question:
Doctor: First of all, thank you for addressing my question. My menstrual cycle is quite regular, 28 days long. My period started on December 13th and ended on the 16th. On December 23rd, I had sexual intercourse without using any protection. My period was expected on January 11th, but it has not arrived yet as of the 13th. On the 12th, I used a pregnancy test and it came back negative, but I don't know much about this. Please provide an answer. Thank you!Doctor's answer:
Hello: Accuracy is over 99%! But it must be used correctly.