Could I be pregnant?lil tmi

Okay so my boyfriend came in me on my ovulation date and multiple times throughout this month and for the past couple of days my backs been hurting so much I’ve been getting nauseous but not throwing up and heartburn and headaches & earlier tonight I felt like I was going to throw up and pee at the same time and now my period is a day late which it’s normally right on schedule I don’t know if it’s more in my head because I’m thinking it or if I actually am and it’s a little too early to test