Help?🤔

Hi ladies! My boyfriend and I are having a little debate and i know it might sound silly but he for some reason wants to know on which time of intercourse I could of possibly gotten pregnant from🤷🏻‍♀️ What is the 26th of Dec. 2020 or the 1-2nd of Jan. 2021.

I’m currently 12 weeks and 3 days pregnant right now (April 18th 2021)