In many early pregnancies, the hCG level will double every 31 to 72 hours. As the pregnancy progresses, hCG levels rise and the doubling time increases. In general, after 6-7 weeks of the pregnancy the best indication of a healthy pregnancy is a good fetal heartbeat.SK YOUR HCG QUESTIONS HERE. In most normal pregnancies at hCG levels below 1,200 mIU/ml the hCG usually doubles every 48-72 hours. At levels below 6,000 mIU/ml the hCG levels normally increase by at least 60% every 2-3 days, though increases between 50-60% can sometimes still be seen in normal pregnancies.
Passionate about all things Australian. The ozone layer is 1 to 3 millimeters thick, if compressed. However, the ozone itself is very diffuse, meaning it is spread out over a range of anywhere between 10 and 50 km.
The hole in Earthâs ozone layer that forms over Antarctica each September grew to about 8.9 million square miles in 2016 before starting to recover. The hole in Earthâs ozone layer that forms over Antarctica each September grew to about 8.9 million square miles in 2016 before starting to recover.