What's going on with my period?! Is this normal?!

Okay so I ended my period in late August and I still haven't gotten my period!. Like I have but it's so weird, because it's not heavy like it usually is!. It's really light, and I dont even need to wear a tampon for it or a pad at night because one day I will bleed a little bit, and the next day I wont bleed at all!. So I don't even know if I should wear a pad at night because I dont wanna be uncomfortable and wear a pad when I dont even know if I need it at night so I'm not wearing them!.
Whats going on!? Btw, I am 14 and I got my period when I was 12 and I am turning 15 October 8th!.Www@Answer-Health@Com

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