You are a woman who is also a mother. Very often, when women become mothers they forget they are people first, with needs outside of the role of mother. Be careful not to confuse a choice to stay home with young children for your identity. Loss of identity to motherhood will cause depression later. Motherhood is an expansion, not a replacement, for your sense of self.
Every woman is an individual.
Do not back off from fulfillment in motherhood. But refrain from making decisions based on guilt for either staying home or working part time. Remain true to your values and beliefs. You know what is best for your family as a whole. And expect this balance to change over the course of the family life cycle.