Haven't had my period yet😳

So I haven't had my period yet and I'm not as paranoid as usual because it's happened before but not as long as it have this time. So this time I'm 56 days late. I haven't been having any signs of pregnancy except for bloating,headaches, and stomach aches but nothing really big. I'm starting to think it's never going to come until 100 days....should I be concerned or just wait? P.S. I'm Kind of not average size for a 17 year old but I'm very active and I play softball....could it be because of my weight or putting on a few pounds?