Ok So I Am 31 Years Old With 3 Children

Ok so i am 31 years old with 3 children (11,9,5..each concieved on different bc. Pill, shot, and mirena). After my last son i had a tubaligation done. As of last week or maybe lil longer, i have been having some symptoms that i only ever felt pregnant. Breast tenderness, extreme fatigue and tiredness, achy abdomen n back, bladder pressure and frequent urination, unusual increase appetite, sensitivity to smells, overly emotional, feeling bloated or full belly, vivid dreams, and bouts of dizziness. Im almost scared to take test cuz i know how unlikely it would be. Could it be possible or is my imagination getting better of me?