Is it normal to have lower back pain to the point I can't walk sometimes?

Amanda • Happily married 💍 In love with my baby boy, Benjamin 💙
I'm 17w5d and I randomly get extreme lower back pain that runs down my butt. Sometimes it hurts so bad that I can't walk and I limp. The pain doesn't last long...maybe 5-20mins or until I sit back down. Is this normal?

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