Help Fletcher Walk Again: Urgent Surgery Needed

My name is Gabby, our 9 month old puppy Fletcher has gotten hit by a car and broke his back leg. We rushed him to the emergency vet and they told us he will need surgery on his back leg or it will have to get amputated. I’m currently 7 months pregnant and we got Fletcher right before I found out we were expecting. He is the sweetest puppy and is so important to our family and our mental health. He is my peace. I am so distraught right now. We paid the money to get blood work done to see if he has any internal bleeding. Thankfully he does not except his back leg is broken and they sent us home with low cost clinics and vet’s numbers and some pain medication. We will have to carry him outside to use the bathroom till we can get him to surgery or amputation. Please help us!!!