The birth of a child is a joyous occasion for every family.
But even at this happy time Muslims are expected to remember the less fortunate.
The wife of the Prophet, Aishah (may Allah be pleased with her), is reported to have said:
"THE PROPHET (PEACE AND BLESSINGS BE UPON HIM) DID THE AQEEQAH FOR AL-HASAN AND AL-HUSAYN ON THE SEVENTH DAY, AND GAVE THEM NAMES." - IBN HIBBAN, 12/127; AL-HAKIM, 4/264.
It is a sunnah of the Prophet Muhammad (peace and blessings be upon him) that when a baby is born the parents should perform aqeeqah for the child by slaughtering two goats or sheep for a boy and one sheep or goat for a girl.
The sunnah is to perform the sacrifice on the seventh day after the child is born although there is no harm in performing it later.