PMS or something else?

My breast aren’t sore like they usually are two weeks before my period, it’s very very odd for me because they are usually sore to the touch before af, my fiancé and I had unprotected sex either the first or second day of my fertile window so that was like 14-16 days ago, idk if it’s to soon for early symptoms or if this is a sign or what I’ve taken test no bfp..has this happened to anyone before and ended up pregnant or any advice helps.

Not to mention not really having any pms symptoms, I’m also peeing more frequently even if I hadn’t drank anything..and having headaches and feeling nauseous and sick on and off.