Hi, I was out of town for 2 weeks. I was supposed to get my period on Thursday and I looked it up and it says that because of the altitude (I live at sea level) it may be blocked because it has something to do with hormonal changes. I came back home yesterday and this morning, I woke up with a brown discharge. Usually 3-4 days after my period begins, I also get this brown discharge. Meaning my period is ending. But I've throughout the whole day and my period hasn't fully came. Should I be concerned?