Feeling nauseous

Elsa. • 25 years young, TTC for over 2 years now
My cycle is supposed to start in a week which is Monday March 16th but I've been having hot flashes and I feel nauseous at random times. Am I just crazy or can you get this early pregnant symptoms? I really hope I get a positive reading next week but just want some advice from anyone who has ever experienced early prego symptoms and got a BFP