Hello, I have very severe pain in my lower back, the pain radiates int…

Hello, I have very severe pain in my lower back, the pain radiates into my buttock. I can't stand up on my own, walk or move because it hurts so much. The doctor said it's okay, it's pregnancy. I'm looking for a good physiotherapist, but since it's in another country, it's difficult to do that, nobody knows anyone in this field. Has anyone had something like this? I've never experienced such pain before. Yoga, stretching, massage I tried - I can't handle them because it hurts.