Patient's question:
I am a working person, and I have been in Beijing for more than five years. Last year, I met my current girlfriend here. We have a very good relationship. Last month, we started living together. I remember it was November 1st. However, on December 9th, she told me she was pregnant because her last menstrual period was on October 22nd. We went to the hospital for a checkup, and the doctor told me she had been pregnant for 48 days. At that time, I felt something was wrong because we had had sexual relations only about a month ago. But the doctor said she had been pregnant for so long. From a medical perspective, I don’t know if this is a normal phenomenon. At the time, I didn’t ask the doctor for more details because I was mainly afraid of affecting our relationship.Doctor's answer:
Pregnancy is calculated from the first day of your last menstrual period (not the end, but the very first day), and it has little to do with the time of intercourse. Intercourse does not guarantee immediate conception. Therefore, the duration of pregnancy is calculated based on the menstrual cycle.