I was working at a flower shop for a couple days and i pricked myself lightly multiple times with rose thorns on my hands. the roses were pretty clean i think but i don't know how long it's been since i got my tetanus vaccine. am i ok?

Maybe/not. The tetanus spores will commonly reside in landscaping/garden soil so it would be wise to seek out a tetanus booster if you are working in this setting. Tetanus arises when a cut or puncture wound is invaded by the spores which then form an infection. The flourishing germs elaborate the toxin responsible for the disease. If there is never an infection, tetanus would not happen.