Girls, I have a question. I'm 24 weeks pregnant and since about 20 wee…

Girls, I have a question. I'm 24 weeks pregnant and since about 20 weeks I've started to "get milk" — at least that's how it feels in my breasts — and it happens pretty often, like 6–7 times a day. Does anyone else have this? Is this normal? I don't remember this with my previous pregnancies (my youngest is 7 years old).