My baby is 8 months now and still having and still half time 喂人奶 (morning and night 埋身餵, one time with bottle). The first few days you may not able to 喂人奶. I will suggest you to borrow 奶泵 from hospital to pump in the first few days so as to speed up the process and relax the pressure inside
You can decide whether to buy 奶泵 after you confirmed you can 喂人奶. I heard from many friends that they are not able to 喂人奶 at all. Don't raise money initially, just borrow from hospital (if you are in private hospital).