My son is 13 days old today. We had problems with latching but he's gotten much better. I have been expressing about 6-8 times a day to maintain milk supply and have fed via bottle as well as offering breastfeeds. Today he's managing to latch and hasn't had any expressed milk now for 5 hours so I hope he's getting enough from me. But my breasts are so sore. He had emptied them cause I tried to express after a feed and didn't get much. They are soft but really tender to touch like they are bruised. Is this normal?