On loss of appetite , Loss of appetite may be the first symptom of sickness in the young infants....So if it persists kindly see a doctor preferably a Paediatrician for thorough evaluation and treatment

Some women bleed during their first 12 weeks of pregnancy. The most possible cause during early pregnancy is Implantation bleeding. You may experience some normal spotting within the first six to 12 days after you conceive as the fertilized egg implants itself in the lining of the uterus. But since you said this is heavy bleeding, you need to see a doctor as a matter of urgency