Can someone help me with period delays. Age 40

[Peanutbutterplease]

My cycle can range from 30-39 days at times . Sometimes around 29days . I used to have horrendous periods in my teens and teen years even into my twenties then my life changed and I was put on the pill . It regulated me and lightened them ALOT I've noticed as I've got older my periods got a little irregular nothing major longer cycle a little heavier then lighter . Anyhow I am on day 39 and still no period it is very annoying as I am going on holiday and thought my period would be either here or over and done with . I've had a few symptoms which I get that usually indicates it's on the way but it's been over 2 weeks and still not here . Any suggestions?.