So confused. First time TTC. Please help

Chelsie • Tue, Sep 16 2014 • May 2015.

So on glow It said my period was supposed to start on the 2nd. When it didn't come I took a test on the 3rd and it was negative. Well here it is the 16th and I still haven't had a period. And my boobs are killing me.

I want to trust the test and just accept that I'm not pregnant but I'm having second thoughts.