Date of conception vs due date?

Erin • Boy mom x 2! Baby #3 coming March 2021!

Hey hey! So I KNOW when my baby was conceived because my husband and I have been apart, sadly. I saw him for our anniversary and surprise! Pregnant. 👏🏻🤰🏼😍 it was on CD11.

Anyways, I had my first appt today and I’m just wondering if they’ll move my due date back 4 days? Or nah?

I doubt it’ll make a huge difference in dating on the first ultrasound. But being 5w2d vs 5w6d seems like an eternity while trying to get through the first trimester!