Thank you for your query.
Unfortunately, no, with a negative blood HCG result, chances of pregnancy are nil.
I think you had an early period in the form of light spotting only.
THis could happen due to stress, anxiety, emotional disturbances, weight fluctuations, thyroid disorder
, uterine fibroids or cervical growths.
Consult your gynecologist to know the exact cause.
Also, for conception, maintain ideal BMI, exercise regularly, have nutritious diet and take regular folic acid
ALso, if you fail to conceive after trying for a year, consult an infertility
specialist and have detailed work up.