Confused and concerned

Fina • Happily married 28yr old momy of 2boys!
So AF came even tho i had good feeling this was the month but it came on sept 30th and the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> says im nt due to start til Oct 2nd! It hasnt ben heavy like normal and im experiencing alot of pregancy symptoms! Hating my body rite now! I think its time to c my obgyn! Ne advice wud b helpful!