Can you use Microgynon as emergency contraception?

We’ve been there, that “oh no” moment when you suddenly realise you’ve missed a pill or accidentally (maybe despite your best intentions) had unprotected sex. As a medical student, I often heard the rumour that taking 3 tablets of your Microgynon pill would work just like an emergency morning after pill. But is this true, can you use Microgynon as emergency contraception and does it work?