Heelpp. Do y'all think I could be pregnant???

So me and my boyfriend had sex on the day I ovulated (10/30). I started cramping on 11/4 and a little while after that I noticed light pink bleeding. It only lasted an hour or so. Today, 11/5 I felt nauseous all day, threw up my breakfast, and was even dizzy at one point. My breast are also very sore and feel very heavy. My period isn't due until 11/14. I've never been early with my periods. I'm usually a couple days late. Could I be pregnant??
I'd be very grateful for responses! 😊