My last period was a few days late (maybe half a week), but I was stressed and very ill that week with the flu, and thought maybe that was why. When it did show up it was not any lighter than usual. My last period started on 26 July. My next period isn't due for a week or so.

Shortly after my last period I continued to get cramps for no apparent reason, but this often happens to me.

I have not had unprotected sex, either before my last period or since.

In the last week I have had trouble sleeping and been very tired. I have also felt a little sick late at night the last few days. My boyfriend currently has the flu, and many of my friends have small bugs (I live in a college so I'm exposed to their bugs).

Yesterday I noticed my nipples were sore to touch. They still are today. My breasts also feel slightly heavier than usual.

Could I be pregnant? Are there any other explanations for my symptoms?