Resignation during maternity leave!

Hi Mammas, do u think it will be fair to resign the job while on maternity leave ? I’m on my first pregnancy and planning to resign in few months, as I go to my native & I have no intention to work after giving birth. But my friends are telling me to take maternity leave & give resignation letter during my leave.But I feel it’s not right & so guilty about it . What can I do ? Anyone have done like this ? Plz suggest! TIA 😊