Could I be pregnant?

Hi ladies. So I had unprotected sex on April 11, which happened to be my last ovulation date (8% chance of getting pregnant). We had around 2 minutes of vaginal sex. A few minutes later, before we moved on to anal, I saw pre-cum on the tip. So naturally, I freaked out a bit. I was also a bit bloated after anal and experienced normal cervix discomfort because he’s big

On the 13th, I got cold and hot flashes and became nauseous. It passed after about 5 minutes. I took a test on April 14 and it was negative, but sometimes I feel like I have a small tingling cramp on the right side of my uterus wall. It is now April 17th and my breasts have been sore for two days (they’re also a sign that my period is coming) I also start my period in 7 days. Is it possible I could be pregnant?