Stay at home mom!

So I'm a stay at home mom to make a long story short our dog is hurt and my boyfriend messed his back up at work so I carried our dog he's big up and down the stairs to go potty last night... well today my upper back hurts so bad I took some ibuprofen and have a heating pad on it my son is sleeping right now. I can hardly move what should I do when he wake up I'll have to pick him up and take care of him I'm scared ok gonna hurt myself more! What would you do it this situation man it out call some one for help?