Estimate a recommended weight gain range based on pre-pregnancy BMI and current pregnancy week.
Guidelines are population-based ranges and should be personalized with your clinician.
Recommended pregnancy weight gain ranges are designed to support fetal growth and maternal health. The suggested range depends largely on pre-pregnancy BMI because people starting pregnancy at different weights have different nutritional needs and health risks. Clinicians use weight gain trends along with blood pressure, blood sugar screening, fetal growth, and overall well-being.
Many guidelines describe total weight gain targets across the full pregnancy and typical weekly gain rates after the first trimester. Early pregnancy weight change can be small and is sometimes affected by nausea or vomiting. Later in pregnancy, steady gain is more common. However, every pregnancy is different, and medical conditions such as gestational diabetes, hypertension, multiple gestation, or hyperemesis can change targets.
Use these numbers as a general reference and discuss a personalized plan with your prenatal care team.
Do these ranges apply to twins? No. Multiple pregnancies often have different recommendations.
Should I diet during pregnancy? Weight management should be guided by a prenatal clinician.
What if I’m gaining too fast or too slow? Discuss promptly with your prenatal clinician.
This tool is for informational purposes only and should not be considered medical advice. Please consult a qualified healthcare professional for diagnosis or treatment.This tool is for informational purposes only and should not be considered medical advice. Please consult a qualified healthcare professional for diagnosis or treatment.