Do I have a receding hairline and is my hair thinning?

I've been worrying about this for a while. I'm only in high school, and I think my hair line is staring to recede or I'm balding. Am I? Check these pics:


http://www.flickr.com/photos/42943162@N05/3959613073/


http://www.flickr.com/photos/42943162@N05/3959613045/in/photostream/


http://www.flickr.com/photos/42943162@N05/3959613055/in/photostream/Do I have a receding hairline and is my hair thinning?
I think that your hair is thinning.Do any of the men in your family have this going on? You usually follow in there footsteps as far as this is concerned.If your concerned they do make Rogaine which is suppose to result in hair growth.You can find it at most any good drug store or even at a Walmart.