Is eating a pumice block bad during pregnancy , i got a craving one day and ate a whole one from a pedicure kit, will it harm the child if i just ate ?

Pica: This is a condition called pica, in which you eat non food matter. It is unknown why it is more common in pregnancy. Some theories are that we may be missing certain nutrients. Doing it once is not the end of the world, however do not make a habit of it. Risks include intestinal irritation/damage and affecting you electrolytes. If you continue to have these cravings, discuss it with you doctor