Weight gain is an important part of pregnancy. Eating well, being physically active and gaining a healthy amount of weight during pregnancy is not only good for you, but also good for your baby.
The recommended amount of weight gain during pregnancy depends on your body mass index (BMI) before pregnancy. Knowing the weight gain range that is healthy for you will help you to gain enough weight without gaining too much. Find out your pre-pregnancy BMI by either:
Eating well and staying active can help you to gain a healthy amount of weight.
The table below will help you find out how much weight gain will be healthy for you and your baby. These calculations assume a 0.5 to 2.0 kg (1.1 to 4.4 lb) weight gain in the first trimester.
*Health Canada 2010 Gestational Weight Gain Guidelines
You don’t need to gain much weight in the first trimester, only 0.5 to2 kg (1.1 to 4.4 lb). Most of your weight gain happens in your second and third trimesters. You may gain weight a little faster or a little slower each week.
Women who gain weight above the recommended range are more likely to have:
Women who gain weight below the recommended range are more likely to have:
Early weight gain is important when you’re pregnant with twins, triplets or more. This helps lower the risk of your babies being born too early and helps to increase the chance for your babies will be born at a healthy weight.
If you’re pregnant with twins, try for the following weight gain:
If you’re pregnant with triplets or more, talk to your healthcare provider about how much weight gain is best for you.
Current as of: January 7, 2020
Author: Healthy Children and Families, Alberta Health Services
This material is not a substitute for the advice of a qualified health professional. This material is intended for general information only and is provided on an "as is", "where is" basis. Although reasonable efforts were made to confirm the accuracy of the information, Alberta Health Services does not make any representation or warranty, express, implied or statutory, as to the accuracy, reliability, completeness, applicability or fitness for a particular purpose of such information. Alberta Health Services expressly disclaims all liability for the use of these materials, and for any claims, actions, demands or suits arising from such use.