That’s because hCG levels vary greatly between each woman, and there’s a wide range of normal levels. Plus, not every woman has increased hCG numbers with twins, triplets, or other multiples.

Levels of hCG are measured in milli-international units per milliliter (mIU/ml). Beta-hCG levels are low early in pregnancy and rise throughout the first trimester, into the second trimester.

If you have a multiples pregnancy then you might have higher levels of human chorionic gonadotropin (hCG), aka the "pregnancy hormone." But elevated hCG doesn't automatically mean that you're ...