Blood in urine negativ; trace. Low blood count in bloodwork. What does it mean.

Need more info. All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, from what you described, you are anemic. The commonest cause of anemia in women is menstrual blood loss. You may take oral iron supplements while to seek an appointment with your doctor.