Not Gaining Weight During Pregnancy: Causes, What to Eat

Gaining weight during pregnancy is an important part of a healthy pregnancy, but it can be a challenge in the third trimester. Many pregnant women have trouble adding on the necessary pounds during the last few months of their pregnancy, and often worry that their baby won’t be getting all the nutrition he or she needs. It’s important to remember that it is normal to not gain as much weight during the third trimester as during the first and second trimesters. As long as the pregnant woman is eating a nutritious diet and not drastically limiting calories, it is likely that her baby will still be getting the proper nutrition. In this blog post, we will discuss the reasons why a woman may not gain as much weight during the third trimester, and some tips to help ensure that both the mother and baby remain healthy during this crucial stage of development.

What happens if you don’t gain enough weight during pregnancy?

Being underweight throughout your pregnancy can increase the risk of complications for both you and your unborn child. Babies whose mothers don’t put on enough weight while they’re expecting are more likely to:

  • Be born prematurely
  • Be small for their gestational age
  • Suffer growth restriction in the uterus
  • Some small-for-birth infants may struggle to breastfeed, put at higher risk for diseases, and fail to reach developmental milestones.

    In the first trimester, a lack of weight gain is typically perfectly normal. Tiny fetuses have tiny nutritional needs.

    The same isn’t true if you don’t gain the recommended amount of weight by the second trimester. As your baby grows, more calories and nutrients will be required. You’ll need to steadily gain weight in order to keep up.

    Why am I not gaining weight during pregnancy?

    When you’re expecting, a number of factors may prevent you from gaining enough weight. Causes of slow or no weight gain in pregnancy include:

  • A fast metabolism
  • Morning sickness
  • Appetite loss
  • Concerns over body
  • Other medical reasons
  • How many extra calories do I need (assuming that you’re starting out at a healthy BMI)?

    Stage of pregnancy Calorie intake
    First trimester No additional calories
    Second trimester Add 300 to 350 calories per day
    Third trimester Add 400 to 450 calories per day

    Any extra calories you consume ought to come from nutrient-dense foods like lean protein, fruits, vegetables, and whole grains. Eat overly processed foods with a lot of added sugar, salt, or fat only occasionally. But do allow yourself to splurge on something you absolutely adore and can’t live without once a day.

    You’re not alone if you’re having trouble gaining enough weight while pregnant. If you and/or your doctor are concerned, you can manage this common worry with a little bit of additional knowledge and even with assistance from a registered dietitian. There are a variety of causes for lack of weight gain, including:

  • excessive nausea
  • loss of appetite
  • food aversions
  • other digestive concerns
  • you might be a small or particular eater to begin with, and may need to pay a little bit more attention to what and how much you’re eating.
  • Not Gaining Weight During Pregnancy 3Rd Trimester

    Here are my top 6 suggestions for making sure you gain enough weight during your pregnancy and do so in a healthy way:


    What does it mean if you don’t gain weight during pregnancy?

    Not gaining enough weight over the course of pregnancy can put the woman and her baby at greater risk of complications. Babies whose mothers gain too little weight during pregnancy are more likely to: Be born prematurely. Be small for their gestational age.

    How much weight should you have gained by 3rd trimester?

    During your first 12 weeks—the first trimester—you may gain only 1 to 5 pounds or no weight at all. In your second and third trimesters, if you were a healthy weight before pregnancy, you should gain between half a pound and 1 pound per week.

    Why am I losing weight during pregnancy 3rd trimester?

    Weight Loss in Late Pregnancy

    Losing weight while pregnant at this late stage could be related to poor baby growth, low amniotic fluid or pregnancy-induced hypertension or preeclampsia. If you’re losing weight and it’s beyond your first trimester, call your provider.

    I haven’t gained any weight since my 30th week of pregnancy. Is that normal?

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