Hi, thanks for using health care magic
It is understandable that you would be worried with a history of a previous miscarriage
You stated that your period is due soon, it is possible that the blood you are seeing is because your period is about to start.
Some women may also experience bleeding in early pregnancy
as the fetus attaches to the lining of the uterus
The bleeding ,in some cases, can occur as a result of an issue with the urinary tract
such as stones, infection, trauma, lesions present.These would usually be accompanied by other symptoms.
In the absence of other signs and symptoms you may want to consider monitoring the symptoms.IF you are not comfortable with then you may want to visit your doctor for an assessment.
I hope this helps