I am 24 weeks pregnant and have been doing crossfit for over a year. Today I was doing a back squat with 35lbs (very low weight for me) and all of a sudden I felt a tingling burst. It didn t hurt initially just felt weird. I rolled on a foam roller and a lacrosse ball to loosen it immediately after it happened. I continued and finished th workout with no problems. Now however, my tailbone really hurts. I can t sit down on it normally, I iced it and still hurts.