Lower back pain in left side.

Im 38 weeks, and for the past week i've been  having horrible pain in my lower left side of my back. When I  try to get up and walk my left leg gives out and I almost fall. What could this be?

[Ashelen]

your baby may be pushing on a nerve or a muscle affecting your walking. You need to go to the doctor and get it checked, though, make sure it's not a blood clot or something similar. Good luck :)