The bone just above the actual tail bone is called the sacrum--I have frequent pain there. I've been pretty active though (we're in the process of moving into a new house and I've done more of the prep work, packing and moving so far since DH works full time and commutes to work by bike). For me it seems to be worse after a day of going up and down the stairs, sitting a lot, and squatting/kneeling. It usually stays with me all day and is worse in the evening. I have yet to figure out why. Hopefully it doesn't continue through the entire pregnancy.
I have been feeling something very similar and it does get worse in the night time. I sure hope it doesnt last the whole time. More info would be great.
Re: Pain in my tailbone?
Isn't that sciatic nerve pain? I read about it in a pregnancy book...mine goes from my tailbone and through my thigh...and almost hits my knees.
It sucks