Girls. I am on Levlen and my period was meant to start on Monday 07.05.18 and its now Wednesday 09.05.18 and I still havent got it.

About 3 weeks ago, a week after my last period, I forgot to take one of my pills in the morning and then about a week or two later I had a small bit of brown blood come out for a day or two.

Is the reason why I havent got my period yet this month is because I forgot to take my one pill a couple weeks ago??