Could i have a scaphoid fracture even with normal x rays and mri?

Possible: Scaphoid fracture of the hand is a commonly missed fracture. It gets missed on xray a lot, MRI has much better sensitivity. However it is possible that any imaging study may miss a finding. When in doubt or concerned, better to be cautious with these fractures because if missed the consequences long term can be significant. Refer to to ortho when in doubt.

Very unlikely: while X-Ray is not the most sensitive test for such a fracture especially early after the injury, MRI on the other hand is very sensitive. It would certainly show a fracture and Sacphu-lunate ligament injuries which is another reason for pain in that region. I recommend seeing a sports medicine specialist.

An: Acute X-rays could be negative, after a few weeks typically positive. An xray likely would show a fracture if it occurred months ago and did not heal. However an MRI would likely have also showed a fracture at the time of injury, A negative MRI means likely did not have a fracture. BUT false negative DO exist. No imaging test is foolproof but lets say its highly unlikely with a negative MRI