No, earthworms cannot bite you.
Earthworms lack teeth and jaws, which are necessary for biting. Their mouths are small and designed for ingesting soil and organic matter. They use muscular contractions to suck in their food. The structure of their mouthparts simply doesn't allow for biting. Therefore, you don't need to worry about being bitten by an earthworm. Handling them is perfectly safe. In fact, many people find their movements to be soft and even ticklish.
