Hi,
Welcome to ehealthforum,
Serum/blood HCG levels of more than 5 mIU/ml is considered as indicative of pregnancy. Ideally the hormone levels should double up every 72 hours, so a serial HCG level test done would confirm if pregnancy is progressing well. Be in regular follow-up with your gynecologist/obstetrician. Take adequate rest. Maintain god diet and drink plenty of water. Avoid caffeinated and carbonated beverages.
Take care.