An inversion would most likely be a signal that a recession is imminent. An inverted yield curve has a perfect track record of predicting recessions, according to RBC's Jonathan Golub. You can see this in the chart below â the shaded areas are recessions. Business Insider
As pregnancy tests, quantitative blood tests and the most sensitive urine tests usually detect hCG between 6 and 12 days after ovulation. However, it must be taken into account that total hCG levels may vary in a very wide range within the first 4 weeks of gestation, leading to false results during this period.
In a healthy pregnancy your HCG levels should double every 48 hours. But when the pregnancy is not progressing the way it should as in the case of chromosomal abnormality your HCG may rise at slower rates or rise at first and then start to decline.