Maturing hairline or receding?

[Oofmeister]

Hi.
Im 18 yrs old and im wondering if i have a maturing hairline or a receding hairline. My dad is the only bald brother (norwood 4-5) among 7 brothers, and his father had a full head of hair. My mother's side has no history of bald men either.

My hair is very thick and wavy ever since i was young. Am i experiencing a maturing hairline or a receding hairline? I know ive never had a straight hairline, especially from an aerial view, because the top of my head is spherical in shape. But what do you guys think? Thanks.