Buy things early or tunggu hujung?

Most of you beli barang baby awal pregnancy (as in barang confirm pakai such as baby car seat, botol susu, bathtub, mattress/bed, maternity bag, etc.) Or tunggu hujung nak beranak baru beli semua sekali satu harung dengan baju, breast pump, oil thingy, shampoo apa semua? Kalau tunggu hujung, tak banyak ke duit pakai sekaligus in comparison beli barang 1, 1 every month? Usually for 1st baby korang spend berapa untuk beli semua? Thank you. #1stimemom