Lower back pains?

Timbyr

I'm 5 weeks and 4 days and have the worst lower back pain I've ever felt. It hurts to move, having a toddler to chase after doesn't help this at all. I also work about 40-48hours a weeks give or take. I've asked them to cut my hours and they won't and I feel like this pain could be bad for the baby? I don't know, I didn't have this with my first pregnancy.