Pump susu

First baby tak ada pengalaman susu kn baby. Awal2 baby memang hisap susu direct to my breast. Lama2 dia macam uwek tak hisap direct. I check susu badan ada tapi baby tak nak isap puting mummy dia. So i decided to pump every 3 hours to feed the baby. Now my nipple macam luka and sakit. Ada yg penah experiences tak? And how korang terus kn feeding the baby as your nipple sakit gila.