Weird boob question

Okay soooooo my body is definitely going through some changes lol. One place is my boobs. I wear a B cup and like the outsides of my boobs are still squishy but it just feels like the entire inside of them is like a hard ball lol. They obviously feel fuller and heavier too but idk it’s just so weird! I don’t like it at all lol. Is that just what pregnancy boobs feel like?? Even at 6 weeks?? Lol.