Not a doctor, nurse only,I will just give you an advice about your bruise to lessen the pain. You need to put an ice over the bruise area so that it will not get swollen and it will make the area numb..you can also take a pain reliever if the pain is not bearable, paracetamol is the safest medicine you can take but check your allergy first if you have any. You can still try to move your legs just a mild/ tolerable exercise. If a pain lessen from the said remedy, that means that you have no fracture inside.
Ou Tzi Chen