Baby Due Calculator Almost 8 Weeks Pregnant If First Day Of Last Period Was Around Nov 1-3? Is That Right?

Almost 8 weeks pregnant if first day of last period was around nov 1-3? Is that right? - baby due calculator

I am a little confused when or how. If my first day of my last period was by 1 November and 3 November, ie after which I was almost 8 weeks? (8 weeks, on Tuesday, to be precise) I had my first appointment in the 4th January. I just want to make sure I have this right. I have the maturity and the simulator BabyCenter is what I said when I received my pregnancy was confirmed.