Beta hCG database, levels chart, scatter plot and doubling time calculator by days after ovulation, IVF embryo transfer and missed period in early pregnancy.
“Normal” doubling time
|Beta-hCG||LMP (DPO) *||Doubling time|
|< 1200||< 5 weeks (21 dpo)||2-3 days (48-72 hours)|
|1200-6000||5-6 weeks (21-28 dpo)||3-4 days (72-96 hours)|
|> 6000||> 6 weeks (28 dpo)||more than 4 days (96 hours)|
LMP – last menstrual period.
DPO – days past ovulation (post-ovulation).
High levels of hCG
Extremely high levels of hCG may suggest multiple pregnancy (twins, triplets, or more).
Low levels of hCG
A low level of hCG may mean that ovulation occurred later than expected, if the HCG level is rising (doubling) adequately.