I can put full weight on my leg only when i bend it i get this pinching pain at the back of my knee and lower thigh. still no swelling. only been a day since i fell on it. will it get better over time? what if going to a doctor isn't an option?

Ice down- then, heat: Ice it down twice daily until the knee freezes (20-30 minutes). Within next 24-48 hrs. switch from ice to warm compresses. I don't understand why seeing a doctor is "not an option"....usually in every major metropolitan city there is a way to see a doctor even if you have no insurance. You could solicit a private consultation here on this network....very inexpensive compared to private doctor.