Cleaning up cat wound on leg

I adopted an abandoned cat late last year, and he is up to date on his vaccines. On friday I noticed redness near his leg and a tiny wound around it. It had a small amount of discharge, but the bite and inflammation is about 1 inch long by 1/4 thick. I didnt notice much discharge from the wound, but it was still puffed up a little. I took a tiny sterile needle, and gently put it in the wound to see if any pus would come out. It only was a little blood. I cleaned the area with saline solution, and put a tiny bit of polysporin on it as I have for the past 2 days.

What is a reasonable amount of time for a wound this size to heal 1-2 weeks? I'm just wondering because I havent encountered this before. I have insurance that covers most of the vet costs if I need to go, but this didnt seem too bad

I would just keep an eye on it. If it doesn't look like it's improving after a few days then off to the vet. If things are improving then you know you're going in the right direction. 

This is how it looks like now. Still swollen, but I tried draining it a few days ago, and got no pus. I still give him polysporin on it. I think I may end up just going to the vet tommorow. It looks like its swelling more

I would see a vet, definitely.  And I don't advise trying to drain wounds yourself.  Sterilization of the cat's leg and the needle is no joke.

Went to vet today, and he shaved a but off of it, gave me metacam for three days, and an antibiotic for a week to try. If that doesnt work, he's gonna need surgery