Last Month i had my Period on Oct. 24, 2012 and I can't remember when it ends but im expecting to have my period on the 20th-24th day of November (32days Cycle). I was worried because i dont feel any signs of having period so I immediately use the Pregnancy Test (November 27,2012) and it's NEGATIVE the following day i tried it again (Nov.29,2012 Morning), it's still NEGATIVE! But i have some pregnancy symptoms like stomach ache and frequent urination!

But on the night of Nov.29,2012, i felt so uncomfortable! I can't sleep and my stomach is aching 

As i woke up in Nov. 30,2012 there was BLOOD in my underwear, color red and  theres a Large Blood Clot came out when I urinate.

 

How can identify If it's Spotting or Period??ANY HELP please