Hello, my period came on the 1st of march, one week before it was due, on the 10th of march I noticed I was bleeding again, but this time it was brownish. Prior to this I took postinor 2 at two different occasions. Now I'm worried about the onset of this round of brownish bleeding. I'm in a foreign land and I can't see a doctor, please help..

I hope you are not saying that you took postinor 2 on two separate times,since this is a emergancy morning after pill, and not for regular use. Using it too much can cause worst side effects.

You can expect from the pill to have your period off for one to two months.

There are many other side effects
Emergency Contraception (http://ec.princeton.edu/pills/Postinor.html)

Plus what do you mean, can not see a doctor.
There are doctors in every nation that I know of