Looks infected.
Squeeze the tip of that finger real hard and look at your fingernail as you release the pressure. It should be white under the fingernail when released....and turn back to pink within a couple seconds at most. That's called a capillary refill test. If it doesn't, you have compromised the circulation in that finger, and the finger is in danger of necropsy.
I would go to the doc asap. You need to deal with the infection and any lack of circulation....before you either lose your finger or cause permanent damage from infection.
If you can't make it in to be seen before morning, I'd be soaking your finger in warm water w/ epsom salts.
Not a doc.