Usually by after two weeks of expected date of periods, urine pregnancy
test kit can detect the possibility of pregnancy.
So the chances of pregnancy are some what less.
Possibly you may be having some hormonal
You once go for blood test
for pregnancy, which will clarify the doubt.
Then if the spotting continues, consult gynecologist once and undergo examination. If she suggests you can go for ultrasound
and hormonal profile once. By this the possible cause for your problem can be identified and treated.