Do Pacific Islanders tend to be round and stocky?

My ethnicity is Filipino, Hawaiian, Samoan, and other things, but my defining traits come from the ones listed. I'm 14 yrs. old, 5' 4", and 125 lbs. and I'm kind of on the round side even though I do Strength exercises, Aerobics exercises, run every other day, and eat healthily (but I do sometimes eat junk food). I was wondering if I'll continue to be round because of my ethnicity or is it just something wrong with my body? Or is there something else going on?