Are breast supposed to be this sore in pregnancy? 😭

Hi everyone. I’m 15 w pregnant. My ribs have been hurting for a while now. It’s also hg pregnancy and I’m currently getting IVs. My breast feel so full and they hurt so bad. Idk my posture is so bad. Today I noticed how all my breast weights on my ribs when I sit or lay back. Anyone else dealing with this?