I was giving her a belly rub a few minutes ago, and decided to check and see if she's got milk. I gently squeezed one nipple, and nothing, so I squeezed the one opposite of it (it's the biggest one at the bottom), when I squeezed, two tiny drops of blood came off. Now, her nipples are a bit dry so is that what caused the blood? If it might be a problem, I'll take her to the vet but I don't want to rush down there if it's just due to dry skin. What do you all think?