might be pregnant?

Me and my boyfriend was on vacation in Florida from September 4th - 12th and basically almost every night we had sex, it's been a week now since Florida. My period was suppose to start 5 days ago (which Glow is very dead on about when my period should start but sometimes it's off by 2 days) Tomorrow should be my last day of my period but nothing. I'm not stress at all. I am bloated a little, my breasts is sore some, very little cramps. Could I be pregnant? I'm pretty sure my period isn't gonna start if nothing happens by the next week I'm gonna take a pregnancy test. Fingers crossed 😁🤞