Question

On December 28, 2017, I had my period. I had sex with my ex-boyfriend on January 7th, and then I had my period again on January 29th. I took birth control pills on January 7th and started taking progesterone capsules at the hospital on the same day. I met my ex-boyfriend on February 5th. Now, my husband had his period on February 27th, but I haven’t had my period since March 27th. I want to know if the baby in my belly is related to my ex-boyfriend, and I am very worried every day. I had a cesarean section on November 28, 2018. I heard that the due date is calculated from the last menstrual period, should it be from February 27th or from the day I had sex with my ex-boyfriend on January 7th? Please help analyze.

Answer

Based on your description, you had your period on December 28, 2017, and had sex with your ex-boyfriend on January 7th. You then had your period again on January 29th. You took birth control pills on January 7th and began taking progesterone capsules at the hospital on the same day. You met your ex-boyfriend on February 5th, and your husband had his period on February 27th. However, you have not had your period since March 27th. You underwent a cesarean section on November 28, 2018. For calculating the due date, it is typically based on the last menstrual period, which would be February 27, 2018. According to the calculation of pregnancy days, starting from the last menstrual period is 28 weeks…