Hi. I Injured My Ring Finger Of The Right Hand

Hi. I injured my ring finger of the right hand a few hours back. It swelled up immediately and hurt a lot. Its not curling all the way through into a fist. It hurts more when moving but pains static too. Now after 7-8 hours the swelling has gone down considerably but it had developed a dark blackish grey bruise at the lower joint on the finger palm side up. There are no deformations very noticeable. The finger is also stiff. I need to know is it broken? Or.just sprained. I cant go to the.doctor unless absolutely necessary. So help me out. ?