Help mee outt !

The other night it was the last night of my fertility week and my man camm inside of me , the next morning my nipples were very sore and since then I am extremely moist "down there" .... Like is there an explanation besides pregnancy to why this would be happening I know he's clean and I just do t think your body starts showing symptoms ... The day after you know so please help me out idk what's going on.