Some hospitals will teach you how to get them to latch on. If you have trouble producing milk use Mothers Milk it's a brand of tea, and/ or Fenugreek it is a pill that helps milk supply. Pumping helps too, it will make the supply greater or hand express. In the beginning you will do both breasts I believe 15min each or so to get the milk to come in and feed them every 2-4 hours if I remember correctly. Then once the milk supply is greater do one breast each feed for about 30-45 minutes. Sometimes keeping a time log will help remind you what side you left off on and how long you fed for. If they get fussy it usually means they are not getting enough to drink.