Hi, I am 25years old and have been off birth control since 2010. I am in a relationship and we have unprotected sex always.my period has been coming in a 32day cycle and 3months ago it changes to 28days but on the 3rd month it came 4 days late and bled for 2days. My breasts are sore to touch when my partner touches it and I've bee tired. This month my period came after being 6days late and now I have cramps in my abdomen. What can it be should I go to the doctor or is it my periods, this is the first my periods has been like this.

It's possible, but not likely. Your symptoms can be caused by so many other things. Ovarian cysts, thyroid problems,. too many to list! You should definitely see your doctor though. My story was almost EXACTLY the same as yours, and believe me... you want to get checked out.

I would take a home pregnancy test and if its negative I'd still see a doctor just in case. I have a child age of 1 and when I was pregnant I had my period for four months in. My doc said its normal. But they were loight. I meam.having sex unprotected is a red flag anyway.
Good Luck!