Sex after conception?

Hi! This may be a really stupid question! But I think I conceived a couple days ago (IB) and we had sex today. It was weird bc he felt a "dry spot" at the end of the vaginal wall, and it felt weird for me too, almost like his tip was "squeezing" itself in (sorry, TMI). Has anyone experienced this type of weirdness? Basically, it doesn't hurt the zygote to have rough sex, right?? Thanks in advance!😊