My period was due on the on the 7th of may and is now really late 16 days.

Where is my period?

Your age has something to do wit it or even your sexual relationships that usually means your pregent test if not you need to c a doctor and explain... it also could be lose or gain and amount of weight please check wit a doctor after

First of all how old are you? Are you sexually active? Are you taking any medications? It will help a bit more if you explain a little better.

I'm 26 years old, yes we are very sexually active.
I'm on no medication, but when I was due my period I was taking anti histamine for hay fever.

Does that help at all?

Next question did you take a pregnancy test??

Well also if your under a lot of stress it will cause you to be late.

Just chill... it happens to at least to every 1 once just take a pregency test n take it easy