I am 38 wks pg, was just sat on sofa and got searing shooting pain up 'you know where' and then bump seemed to 1/2 in size and drop right down!!!! Followed by very mild period type pains. Am I weird or is this fairly normal and just a baby shift? I was 3/5ths engaged last friday. 1 hour later bump is still low but looks a bit more 'normal' now. Pains have stopped.