Hello this will be the third week on Saturday my period ended but on the second week I had been bleeding again and it wasn't a period it was brown and abit thick and lasted a few days could I possiable be pregnant ?

If you are sexually active you could be pregnant. However, if you have had a full period since your last sexual encounter, then its not likely.

Your post is unclear about the timing of things. However, if you are not due for your next period, then the symptoms you arer feeling would not be caused by a pregnancy. The first physical manifestation of a pregnancy is a missed period.