I'm 14 and a half. I'm 5'1" and i weigh 100 pounds. I started puberty about a year ago but why haven't i experienced a growth spurt yet. Both of my parents aren't very tall. My dad and my mom are both about 5'3" so i know i won't be very tall.

Is it possible to be experiencing a growth spurt and not know it? I measure my height every couple weeks and i don't see any major difference.