at what hcg level can a heartbeat be detected
Generally from 6 Â½ -7 weeks is the time when a heartbeat can be detected and viability can be assessed. A normal heartbeat at 6-7 weeks would be 90-110 beats per minute.The presence of an embryonic heartbeat is an assuring sign of the health of the pregnancy.rogesterone. Progesterone levels also can have quite a variance at this stage of pregnancy. They can range from 9-47ng/ml in the first trimester, with an average of 12-20ng/ml in the first 5-6 weeks of pregnancy.