How Would My Hairline Be Classified On The Norwood Scale?

[Pulse]

Hi! I noticed some recession of my hairline and I was wondering where would I be classified on the Norwood scale. I first noticed it when I was about 17, I'm 19 now and it seems to have stopped for almost a year.
Here are a few photos, I apologise for the bad quality:

 

[DoctorHouse]

NW2A

 

[Pulse]

NW2A

Thank you for the answer. Do you think I should start treatments, or should I wait to see if it will progress any further?

 

[DoctorHouse]

Thank you for the answer. Do you think I should start treatments, or should I wait to see if it will progress any further?

I started treatments when my hair looked better than yours. I would start now as long as you understand the risks with the treatments.

 

[Pulse]

I started treatments when my hair looked better than yours. I would start now as long as you understand the risks with the treatments.

I was barely 17 when it all started. Yes, I do understand the risks.

 

[ScaredOfBalding]

NW2A, not typical pattern of NW2?

It's just a NW2.