I have noticed my pulse has risen to 90~110beats over the last last couple of days. i also feel warmer. i think i maybe pregnant but too early to test yet. are these related? thank you

Maybe, maybe not: A woman of childbearing age who has some nausea (with or without vomiting), some fatigue (feels less energetic), a sharper/stronger sense of smell, mild soreness/swelling of her breasts, and maybe some food aversions and cravings . . . May be pregnant. The higher metabolic state and a higher heart rate (hr) will come later. A primary care doctor can look for the cause of tachycardia (high hr).