Symptoms?Concernd & Confused

Hey everyone, im probably over thinking so please bear with me. Ive been extremely bloated and having discomfort in my lower abdomen/stomach area. Im just ending my fertile window and my breasts are so sore. To my knowledge I dont really experience sore breasts at this stage of my cycle. I took 2 tests just to be safe and theyre negative but just wanted to hear some opinions on what you guys may think. For context I had unprotected sex the day before my last period started. Appreciate any help!