Aching and halfway!!

Kassandra • #2 due 6/18/15
So this is my second child. First baby, 4 years ago, healthy, uneventful pregnancy. Now this baby, I'm having a healthy pregnancy, 20wks today!!! But I've had "aching". I've had lower back pain, similar to period cramps. Ive had severe sharp tailbone pain. I've had neck/ shoulder pains from huge boobs. And the most recent is I feel like my lady parts are bruised. I know baby's sitting breach so I wonder if he's like bruised my pelvic bone or something? But it only hurts when I'm walking (sitting or laying is fine). Anyone else having wierd aches??