Patient's question:
I want to find a doctor who can accurately calculate my estimated delivery date based on my first ultrasound results. My last menstrual period was on May 30th, but I don't understand why the doctor used the size of the gestational sac to determine my last menstrual period as June 7th. I vaguely remember my last menstrual period ending on May 30th and lasting until June 7th or 8th. Then, I had intercourse before the 15th but forgot that it wasn't necessarily fertile. On the 18th, I had intercourse, and on the 19th, around 9 a.m., I took birth control pills. After the 22nd, I had intercourse again but was not breastfeeding. Then, on July 13th, I had an ultrasound that said I was about 5 to 6 weeks pregnant. The doctor said that since the baby was developing normally, it proved that the birth control pills I took on the 19th were ineffective. If they had worked, the baby would have miscarried. The doctor also asked me if I had had intercourse after taking the birth control pills. I believe I must have conceived after the 22nd. Could any doctor help me calculate my delivery date based on my ultrasound results? Thank you.Doctor's answer:
Based on your description, it is inferred that the likelihood of conception is higher with cohabitation on the 15th. Your last menstrual period was on May 30th, and the results of the ultrasound on July 13th are basically consistent with it. The detailed examination results of the ultrasound are basically consistent with your last menstrual period because the days of conception are calculated based on the first day of the last menstrual period, not based on the time of cohabitation. Pay attention to rest during pregnancy.