Going bald at 17?

[Thisisnotjoe]

I think i might be experiencing mpb mainly because my hairline is receding to the point where it looks to be close or at a norwood 2 already. Also the thing that concerns me most is these lose hairs at my hairline that easily come out with a slight pull. My mothers side of the family all have there hair but my dads side everyone is bald and a lot of them starting going bald at 15. all 4 of my older brothers all still have there hair and the hairline is receded and there hairline is really similar to mine and there 8-12 years older than me.