advice please?

okayyy so i usually have ‘irregular’ periods.. but they’ll be late and heavy if anything…

my period was supposed to start yesterday.. and it did, but it was very light & today i don’t see any blood ?

i have been stressing, but that’s pretty normal for me…

i have fertility problems but my man did cum in me during my ovulation.. i don’t think i’m pregnant (i hope im not atleast lol) but i have felt light headed a lil bit lately even tho i have been drinking water.. and only water.. a bit nauseated too but not too bad idk if anyone can help me out but if anyone knows why this could be happening please lmk (I AM NOT ON BIRTH CONTROL EITHER)