Might be pregnant..Or cycle is playing games..

Soooooo I was suppose to start my cycle on the 7th of this month..Today is the 13th..Could I be pregnant..?? N yes I took a test..On the 11th and it said negative..I have been having abdominal pains..Also pain where my ovaries are..It's weird..If you have ovarian cyst you understand..So yea..Also the worst back pain ever..I have also had a baby before..But y'all know each one is different..Feel free to comment..