🤰Pregnancy Weight Tracker

Track healthy pregnancy weight gain based on BMI and guidelines.

Height

Week of Pregnancy

Pre-pregnancy Weight (lbs)

Current Weight (lbs)

About Pregnancy Weight Tracker

Track recommended pregnancy weight gain based on your pre-pregnancy BMI and current gestational week, following the Institute of Medicine (IOM) guidelines. Gaining the right amount of weight during pregnancy supports healthy fetal development and reduces risks for both mother and baby. This tool shows your target range and current progress.

How to Use Pregnancy Weight Tracker

1
Step 1
Enter your pre-pregnancy weight and height to calculate your pre-pregnancy BMI.
2
Step 2
Enter your current week of pregnancy and current weight.
3
Step 3
View your recommended weight gain range and whether your current gain is within, above, or below target.

Common Use Cases

Pregnant women monitoring weight gain against healthy guidelines each week
OB patients tracking their progress between prenatal appointments
Partners and family supporting a pregnant loved one with accurate information
Postpartum planning by understanding expected total pregnancy weight gain

Frequently Asked Questions

How much weight should I gain during pregnancy?

IOM guidelines recommend: underweight (BMI <18.5): 28–40 lbs; normal weight: 25–35 lbs; overweight: 15–25 lbs; obese: 11–20 lbs. Women carrying twins have higher targets. Your OB will personalize these targets for you.

How is the weight gain distributed over pregnancy?

Weight gain is not linear. During the first trimester, gain is minimal (0–4 lbs). Most of the weight is gained in the second and third trimesters at roughly 1 lb per week for normal-weight women.

Is this tool a substitute for medical advice?

No. This tool provides general guidance based on IOM guidelines. Always follow your OB or midwife's personalized recommendations for your specific pregnancy.