Pregnancy and Weight Gain

During pregnancy, your body goes through lots of changes to support your baby’s development. Gaining weight is a natural, normal, and healthy part of pregnancy.

Gaining a healthy amount of weight:

  • Helps your baby grow and develop.
  • Helps lower the risk of health issues for both you and your baby.
  • Helps your body make breastmilk.

How much weight should I gain?

The amount of weight gain that is right for you depends on your weight before you became pregnant. Weight gain is usually slow during your first trimester, with most weight gain happening during your second and third trimesters.

Talk to your health-care provider to discuss the recommended amount of weight you should gain during your pregnancy.

Eating well and being active can help you gain the amount of weight that is right for you and your growing baby.


Eat a variety of foods each day (click to expand) »

Visit Nutrition During Pregnancy for information about nutrition during your pregnancy. Here are a few tips:

  • Use Canada’s Food Guide to plan meals and snacks. Try to eat a variety of vegetables and fruits, whole grain foods and protein foods.
  • Eat a little more food each day, by adding an extra snack or having a bit more food at one of your meals.

If you have questions, you can also contact 811 Dial-a-Dietitian to speak with a registered dietitian.


Enjoy being active each day (click to expand) »

Check out Physical Activity During Pregnancy for information about being active throughout your pregnancy. Here are a few tips:

  • Try to get at least 150 minutes of moderate-intensity physical activity each week.
  • Try to be active at least three days a week.
  • Check with your health-care provider if you have questions about being active while pregnant, including medical reasons that may make it unsafe.

Struggling to access food?

There are programs that may be able to help:

For information about eating well for less, check out Healthy Eating for Less.

Services related to this information:

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Last updated: 2025-03-17