I am 19 years old and I had unprotected sex

Patient: I am 19 years old and I had unprotected sex on may 2, I was supposed to start my period on the 3, but it hasn’t started yet. I spotted very little on the 5th and nothing else after that. I took a pregnancy test and it was negative. The only thing is I feel like I’m on my peruo buy no blood I have sore boobs, bloated, and mood swings. Could I be pregnant?

Doctor: