I am 33 weeks and have been up all night with a really bad back pain. I do work on my feet all day but this paint just started yesterday and has gotten so much worse the last 6 hours or so. It's my lower back, and feels like it's right on my spine. I get random twinges of pain even when I'm not moving. It hurts when I move as well, even walking to get my heat pad was torture :(  when baby girl moves too it hurts more.