Please Help!! Late Period

Cristina

I'm 12 days late! and even though I am not super regular I've never been so far from my usual date. Sometimes I get it every 24 days and sometimes it extends to 29, but it's been 37 days and no sign of it coming.

I'm 20 years old, I know I'm not pregnant because I am a virgin and I am not under any stress because I am still enjoying my summer break. Should I go see a doctor? Or is this normal?