Thanks for the query.
Your bleeding could be normal menstrual flow which can come one to two days early or late.
It can also be early miscarriage
as sometimes urine pregnancy
test kits may not detect very early pregnancy.
So as at present you are not having any bleeding nothing need to be done.
If you have any further spotting or pain abdomen etc better to go for blood test
for pregnancy and ultrasound
to rule out the possibility of miscarriage and retained products.