Hi, I m having the same pblm..
I m currently at the end of my 31st week..
My pelvic area seems to be 'locked' onto my thigh area whenever I lie down for too long n try getting out of bed after that..
My vagina gets very sharp pain (like those you experience when you get UTI) from time to time while walking..
I have not got the chance to ask my gynae yet..