First off anything is possible. second take another test....third, people spot all the time. I did in my first trimester and it was more a beige-pinkish but it was light...I have heard of people conceiving during pregnancy. Take the test...That is all the info we can say. I have never checked my cervix nor would I know what I was doing...but if you test positive than the HCG hormone is there and maybe you conceived earlier than you thought...