am I pregnant?

KeVine
Sooo I took my Nuva ring out after only having it in for a week (Sunday). I had unprotected sex twice before I took it out (Friday and Saturday) and once the day I took it out. Since maybe Sunday I've been feeling nauseous but today I feel like I'm about to throw up every where, my boobs are tender and my back has been aching as well and I've been having rally bad gas (Ik tmi sorry ). Could this maybe be a sign that I'm pregnant ? Or am I just overreacting? Please help! Thank you!!
Ps I've also been bloated as well and I feel different, idk how to explain it