Got my XRAY result

It has been 11 days ago when injury strikes my left knee and to tell you honestly it's still stiff a I can feel a little pain on it.
A week ago I decided to take an X-Ray just for the sake of me being confident that I don't have any broken bones or so whatever. And a few days ago I got the result which I'm very please to say that I'm FRACTURE FREE, yaay!!!! But one thing that bothers me is that why do I have that repetitive injury, do I have to go to take an MRI which stands for Magnetic Resonance Imaging where it can capture images on your body without making a surgical incision. I really want to take this so they can tell if I have a tear ligament, a damage meniscus, a trauma from Sport activity, an arthritis, a fluid build-up on my knee or just a simple knee sprain( I'd take this) BUT it's pricey for my likings, it's like 10,000 pesos up or $200 usd up, it depend on the hospital. Since my job doesn't pay much and I still have other bills to pay for me to afford an MRI, maybe someday if I can save little by little, I'll reach that amount in time.

Here's a picture of my xray result, I still feel blessed that there's no fracture in it.