Cancer or Anemia. I am scared.

Patient: My hgb A was low at 66.4. I a pregnant and they did a hemoglobin electo. test ( I think that is what it is called) they are referring me to a hemotologist. what does this mean. I have always had to take iron for anemia, but have never been referred to a hemotologist. I am currently 12 weeks pregnant.

Symptoms: Some fatigue