My period have been very regular and my a last normal period was sept 1st then on sept 20th I have very odd spotting that started out deep red then went to a lite pink and ended brownish. It only lasted 3 days and I don't even thinking the spotting wouls have filled two full tampons. And I have taken 6 home tests all have came up negative yet I am showing a lot of signs of being pregnant. I also have not got a period since the spotting. I have one child and never had any problems like this with him. I'm confused on what the spotting could be and if I should go to the dr and get a blood test done.