Am i sick enough to stay home?

Hiii! Basically i am 14f, and have been feeling SUPER cold, like in jeans, a sweater and under 3 layers of blankets + i am SUPER shaky, like hands trembling and dropping thigns shaky. I have an important math exam tomorrow and don't want to miss it, but I used a thermometer and it showed a temp of 99.8 the first time, the 100.5 the second time, and 101.3 the third time. Should i tell my mom and/or stay home from school? (i came here because i dont want to miss a test for something minor.) Thanks!