I can feel a bump on my toe. It still hurts to touch, land a jump or hit my toes. Could it be a hairline fracture?

It could be... Have an x-ray taken to find out.
Get an xray. If the bones in your toes hurt, you should get at least an x-ray. Bones should not hurt to touch. You may benefit from wearing a special boot/shoe to allow you to ambulate while your foot is healing. But the first step imaging studies.