Help me someone I cannot do this anymore

So I’m pregnant with my 3rd. I had SPD in my last pregnancy but this time it’s so much worse. I literally can’t get out of bed in the morning and I literally can’t walk. It’s very hard because my husband works 6 days a week and I have to look after the kids but how when I can’t even get out of bed without being in severe pain.

They gave me a support belt and also some pain killers but is there anything else they can do for me? I’m 18 weeks and already can’t walk. Please help