I Hit My Leg In Soccer On My Calf. This

I hit my leg in soccer on my calf. This was a month or 2 ago. I got hit really had and it made a bump the size of an goose egg and bruise, but an week later the bruise when away. But the swelling did not go I seen a doctor and he said it was no thing but I do not believe him so can you help please I'm about to be 15 btw