Does going to the gym jumpstart puberty?

I starte going to the gym VERY infrequently like once or twice a month wen i was 11 and i went through a lot of changes early, for example, my has a growthspurt that year and my voice broke the following year, but now im worried that coz it jump started im not going to fully go through puberty coz my is still the same size as it was wen i was 11