I have the same pain. My OB said the baby's just laying low. Along with that and my baby boy laying on my sciatic nerve I'm getting use to the pain.

Like as if you hit your pelvic bone on the cross bar of a bicycle? 😃 I have that too...since week 20 (now week 23). Google "Pelvic girdle pain". If that sounds like what you have, yoga helps a LOT! Pigeon pose, frog pose, sumo squat, and happy baby especially. Good luck!

I'm 19 weeks and I feel that a lot. When I had my ultrasound last week the baby was lying very low down ANC my obgyn said it's the weight of the baby and the uterus expanding.