(20M) Am i losing my hair?

[John1231]

Hey guys. I usually shed anywhere from 3-8 hairs in the shower, and a few more on the towel. To test my hair, I rubbed it pretty vigorously for about a minute and got 15 hairs on my desk. However, I'm getting worried because I'm noticing some hair on my pants and on my desk when I'm working. Not sure if I'm becoming hyper aware of it or not.

Here are some pics. First 2 are from my hairline has a kid, the next is from 3 years ago, and all of the rest are from today.

For my family history, my dad has a perfect head of hair in his 50s, so did my paternal grandfather. On the other hand, my maternal grandfather lost his hair REALLY early although his pattern was completely different than mine I think?

Here's a picture of him when he was 18: https://imgur.com/a/p8UB71i

Here's me

https://imgur.com/a/CCkzlLu

Also, I want to mention I went to the derm a few months ago and she said I wasn't balding, but I'm not sure about that.