Patient's question:
Was it before or after your period that you got pregnant? My last period started on June 14th in the afternoon and lasted for six days. On the seventh day, it stopped. I had sex with my ex-boyfriend on June 10th, and from June 12th to the day after my period ended, I was with my husband. My last period was on June 14th. Why didn't the ultrasound show a gestational sac until 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? What is the evidence?Doctor's answer:
If the menstrual cycle is long, the fertilized egg implants later, and the time when the gestational sac is observed in the ultrasound is relatively late. The ultrasound examination calculates the gestational age based on the size of the fetus, and there may be a few days of error based on the data from the instrument and the measurement. However, it is basically consistent with your last menstrual period on June 14th, so your baby is your husband's. The fact that your period arrived on time proves that the previous sexual intercourse was not fertile. Moreover, the time you had sex with your ex-boyfriend was during the safe period, so it would be impossible to get pregnant.