Symptoms before BFP?

Tyler • Hi everyone! I’m a wife and mama to baby Wesley. ♥️
Has anyone ever felt pregnancy symptoms before actually getting a BFP? I've had sore boobs for like four days now, really fatigued, headaches, and yesterday I was kinda nauseous. I took a test this am with FMU and it was negative. It's still pretty early for me to be testing-I'm on CD26. Has this happened to anyone else before?