Could This Just Be Hairline Maturing at 16

[Pocket pizza]

I know this may sound stupid even for my age, but could I have a early maturing hairline or Male pattern baldness. So it starts with my fahter who went bald from around the age of 20-29 all gone. Then goes my two older brothers.
Both started balding at around 16, one still has very thick hair with a norwood 2.5 with crown thinning(slow thinning).
My other brother has very thin hair and is maybe a norwwod 5 with almost all his top scalp showing(thinning fast).Now for me, I'm 16 about 17 with what to me seems like the thinning of half a norwood 1 and the edges of my hair are moving closer to my side burns. Only one temple has this patter while the other shows signs of maybe some thinning but pretty much stright. My hair is like brother one, very thick.
I didn't notice my sides were thinning til i was 15 and for the past 5-6 months i've been monitoring it with no noticable changes.
So is this a Mature hairline or Mpb.
Thanks, and Thank you for your time.



https://imgur.com/gallery/J9EUt