I've had really bad tailbone pain all day today (today is the first day I've noticed it). Anytime I re-position myself in my desk chair it hurts! I sit most of the day, so I am sure that doesn't help. I know some women experience this because of weight gain, but I've only gained 5 or 6 lbs, so that doesn't seem like enough to make this big of a difference. Has anyone else experienced tailbone pain? Was there anything that helped with the pain? I'm 18w3d. Thanks!