According to USG report, as fetal heart beat is good enough, then small gestational sac
& bleeding may suggest Threatened type of miscarriage
(complete recovery possible).
You may need Micronised Progesterone
Tab or Depot injection to prevent miscarriage and support pregnancy. Consult with your doctor and need repeat scan after 2 weeks.
Do these things like Complete Bed Rest,Continue Folic acid
supplements, Protein rich diet, Avoid long journey/heavy work,avoid stress,maintain personal hygiene.
Do periodic check up. Be well.