I started Yaz Dec. 9. I never have usual periods however my period started Dec. 10 (day after I started)
And was very light, all my periods are light.
I had unprotected sex with my boyfriend, Sunday around 5 - 6pm, that makes it 38 hours ago.
I take my pill everyday around 10:40-11pm but last night (monday night) I fell asleep and didn't take it, but Tuesday morning(this morning) at 4:12am I took it. AM I OKAY ? Its 6:44 now.

Here's a very comprehensive website. Yaz Dosage | Yaz Low or Missed Dose

You should probably read through it so that you thoroughly understand what you are using and how it works - as well as the side effects and what happens if you skip a dose or two.