The day you have your baby is considered day 0 so Saturday would be day 3.

Generally what happens is you have the bed for five days, but if you like you can go on an early discharge program which means you will have midwives visit you at home each day until five days after the birth. You are not technically discharged from the hospital until the five days is up, so if anything goes wrong you can go straight back in. To be discharged early both you & bub must meet whatever criteria the hospital has, so if bub is not ready to go home but you are bub will have stay.