My 11th & 12th DPO I took a pregnancy test that came out positive. There was like no questions as to the fact that it was positive. Then on my 13th day past ovulation I started spotting brown and somewhat watery thinking okay this is normal. Then I had a lot of red blood but it would still be watery kind of blood. Now the bleeding has completely stopped which if that was a period would've only been four days which is not normal for me is there a chance I'm still pregnant or was that a chemical pregnancy?