Patient's question:
Arrived on October 1st, stopped on the 4th, and completely stopped on the 5th. Cohabited with the boyfriend on the 15th, and with someone else on the 17th and 22nd (not the boyfriend). Stayed with the boyfriend after the 24th, and had sex with him on the 25th until he discovered he was pregnant. I want to confirm if the child is really my boyfriend's. It's heartbreaking if it's not. So, I want to verify the delivery date. The ultrasound was done on November 12th.Doctor's answer:
From what you've described, it's really hard to say. I'll tell you how to estimate your ovulation period. You can try estimating it yourself. Generally, menopause occurs about 15 days before the next menstrual period. If your menstrual cycle is regular, you can make this inference. However, the lifespan of the egg after it's released is no more than 24 hours, while sperm can survive in the female reproductive tract for up to 5 days. Therefore, if you want to confirm who the child belongs to, it's actually quite difficult.