holy shit plz help

Ok so a few nights ago my 3 yr old son somehow saw me and my husband having sex. And i was called into the day care office bc my son said something he shouldn't have and ik where he heard it😞my husband sometimes (during sex) whispers a little loud and he says "fuck babe your amazing" and my son apparently pushed a girl down and laid on top of her and said "fuck babe your amazing" omfg what do i do im so embarrassed i dont really wanna take him back to that daycare😭😭what do i tell him