what type of cichlid you keeping? if malawi cichlid, will take around 8-14 days to get the eggs hatch in their parents' mouth. Normally female will keep the eggs inside the mouth. Then she will release the fries after the fries able to swim.

The parents will protect the fries. If you mixed with other adult cichlids. It is better for you to remove the others. Else, they will take the fries as their food.