5% of women have detectable hcg levels right after implantation. They were 750 on monday, 1450 on wednesday and 2049 on thursday (one day later). Webyou can use the calculator below to calculate the doubling time of two beta hcg samples by entering the date of the blood test and the corresponding beta hcg value for that day.

If that's true then i'm still double a faster thanโ€ฆ Webnov 22, 2010ย ยท my levels were more than doubling every 48 hours, but since they hit 1200 they have doubled approximately every 72 hours. The doubling time for hcg can also take. Webjul 25, 2020ย ยท hcg begins to be produced around the time of implantation and enters maternal circulation.