So for the past 4 days my boobs have been extremely tender and even itchy a bit. I read this is a sign of them growing (which I definitely think they are!). I'm only 5w6d though and now the middle of my left armpit is extremely tender/sore...is it normal for an armpit to be sore as well? I googled it and someone said their friend had a lactating armpit! Is this even real, let alone normal? Anyone else have sore boobs and armpits? Another post said it's just milk coming in, but milk shouldn't come in This early should it? Thanks for you input!