Patient's question:
My last menstrual period started on June 14th in the afternoon and lasted for six days. On the seventh day, it stopped. I was with my ex-boyfriend on June 10th, and I was with my husband on June 12th and 13th, as well as after my period ended. Why did the ultrasound only show a gestational sac on August 9th? On September 19th, the NT scan showed the fetus was 12 weeks and 5 days. On December 6th, the 4D ultrasound showed the fetus was 22 weeks and 2 days. Who is the child? Please give me a definitive answer. Thank you. If any doctor is unsure who the child is, or if they tell me to take a paternity test, there’s no need for further explanation. Thank you...Doctor's answer:
According to the last menstrual period you provided, which was June 14th, by August 9th it would be 56 days post-menstruation. However, the ultrasound shows it is less than 8 weeks, which can prove it was conceived later. According to the expected date based on the last menstrual period, it should be 13 weeks and 6 days by September 19th, but the ultrasound shows 12 weeks and 5 days. The ultrasound should be taken as the primary reference, so it is still considered a late pregnancy. This means it was conceived during July. The fetus should be your husband's and has no relation to your ex.