Baby Center on MSN5mon
How hCG levels change by week of pregnancy
This phenomenon is called the "hook effect." After doubling about every two to three days, hCG levels generally peak at ...
Parents on MSN6mon
Why hCG Doubling Times Are Important in Early Pregnancy
This period increases to about every 96 hours as you get further along. HCG levels peak during the first eight to 11 weeks of ...