Thanks for your query.
It is possible that you might be pregnant.
An early pregnancy
, a failed pregnancy or an ectopic pregnancy also could present this way.
As your HCG values have always been low, there is no point going in for a urine home pregnancy test.
It is better to consult a Gynecologist and go for a blood B HCG value or an ultrasound
Other conditions like endometriosis
, cervical growths or polyps could present this way.
, stress, anxiety, etc could also give such a picture.
Consult your doctor for a clear diagnosis.