Nymphs are immature (young) stages of bed bugs. They grow by shedding their skin (molting), but they require a blood meal in order to molt. Bed Bugs have 5 nymphal stages, each slightly larger than the preceding one. Nymphs of all stages are smaller than the adult stage. Newly hatched
It’s unlikely that a bed bug would travel on you or the clothes you are wearing. You move too much to be a good hiding place. Bed bugs are more likely to be spread via luggage, backpacks, briefcases, mattresses, and used furniture.