Why Is Weight Gain During Your Second Pregnancy Different From The First?

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Gaining weight during pregnancy is normal due to the hormonal changes in your body and fetal growth. If this is your second child, though, you may have observed that the weight gain during the second pregnancy differs from the first. You may feel heavier and notice your baby bump earlier than you did during your first pregnancy. If these early changes are worrying you, keep reading this post as we explain the reasons for differences in weight gain during the first and second pregnancies.

In This Article

Key Pointers

  • In the second pregnancy, the baby is positioned lower, causing the tummy to develop more quickly.
  • Hormones and metabolism are affected during the second pregnancy, resulting in quicker weight gain.
  • Lower-abdominal pregnancy during the second pregnancy may result in increased urination, pelvic discomfort, and back pain.
  • Baby movement may begin earlier during the second pregnancy.
  • If the belly fat from the previous pregnancy was not gone, the belly size may increase during the second pregnancy.

Weight Gain During The Second Pregnancy: How It Differs From The First

Now that you are in your second pregnancy, you will realize that there are many different things about this pregnancy than your first pregnancy. In fact, every pregnancy is different from the other, and one crucial difference that you may note is your gestational weight gain. The amount of weight you put on throughout your second pregnancy will be quite different from how it was the first time. In addition to gaining more weight faster, you will also start showing sooner.

However, some women might not gain as much weight during the second pregnancy as before. For example, Libby McCauslin, a mother of two, talks about how her weight outcomes differed in her two pregnancies. She explains, “With my daughter Grier (her first pregnancy), I gained 50 plus pounds of pregnancy weight, but with my boy Banks, in my second pregnancy, I gained 39 pounds, which was significantly less weight (i).”

Here are a few pointers that will help you understand why you have a different pattern of maternal weight gain in your second pregnancy. Understanding the factors that influence weight gain during second pregnancy can help you set realistic expectations and have a healthy pregnancy.

1. You may be slightly overweight during your second conception compared to your first one

Weight gain during second pregnancy
Image: Shutterstock

Once you have had a baby, it is difficult for you to lose all those extra kilos because of postpartum weight retention. Studies indicate a positive association between higher pre-pregnancy body mass index and excessive weight gain during pregnancy (1). Your body also takes much longer to get back in shape, especially to your pre-pregnancy shape.

  • If you have conceived in a short gap after having your first baby, it is likely that your body did not have enough time to shed the excess weight you gained during the first pregnancy.
  • Pregnancy affects you in many ways, and one of the biggest changes it does is to your hormones. Your hormones as well as your metabolism go through many changes during your pregnancy. At the time of your second pregnancy, your body will have already experienced many changes that can pile on the kilos faster and make weight management difficult.

A study with a total of 19,362 women showed an association between the interval between pregnancies and maternal weight gain at the start of the next pregnancy. There will be some weight gain by the start of the next pregnancy, but the quantity may differ based on the gaps between the pregnancies. As shown in the graph below, a gap of 12 to 23 months between pregnancies leads to the least quantum of weight gain.

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Prevalence of different disability types in US, by Age (2019)

Source: Thousands of Asteroids Whizz Past Earth

2. Your baby is positioned lower

Once you have a first pregnancy, your uterus never shrinks back to its previous size. As a result, your belly starts growing faster and even shows faster than the first time, making you look bigger sooner than before (2).

  • Pregnancy stretches the muscles of your abdomen, making them weak (3). As a result, your abdomen is not able to support your baby well the second time, which causes your fetus to move lower into the abdomen. You may feel it is not a good thing, but if your baby is placed lower, it will mean that you will have less difficulty in breathing and eating, as compared to your first time.
  • However, the problem that you may encounter when your baby is placed lower in your abdomen is the urge to urinate more frequently than last time. You will also experience a higher pressure on your pelvic area and your bladder, which can result in a lot of pelvic discomfort. Carrying your baby lower in the abdomen can also place more strain on your back, resulting in back pain that can sometimes become a permanent fixture.
protip_icon Quick fact
Some women may experience their baby kick or move earlier than they did in their previous pregnancy. It could be because they now know what baby movement feels like (2).

Weight Gain Guidelines During Pregnancy

The amount of weight you should gain during pregnancy depends on your pre-pregnancy BMI. Women with a normal BMI (18.5 to 24.9) should aim to gain 11.5kg to 16kg of weight, while underweight women (BMI of less than 18.5) may need to gain 12.5kg to 18kg, and overweight women BMI of (25 to 29.9) should aim for 7kg to 11.5kg (4).

Extra Care During The Second Pregnancy

Do not engage in unhealthy eating
Image: Shutterstock

Follow some tips to manage weight gain during the second pregnancy, take extra prenatal care, and minimize the risks of complications (5) (6).

  • Include whole foods. Eating a balanced diet rich in whole grains, low-fat dairy products, lean proteins, fruits, and vegetables is essential for maintaining a healthy weight. It is best to avoid crash dieting and calorie counting while pregnant. If you are slightly above the recommended weight, a dietitian can recommend a balanced diet plan for overweight pregnant women
  • Cut down on unhealthy fats. Avoid consuming junk or fast foods and foods containing artificial flavoring or sweeteners. Also, restrict the consumption of sweetened beverages including packaged fruit juices and soft drinks. Replace heavy fats such as butter, margarine, and mayonnaise with healthy fats like olive, coconut, or avocado oil.
  • Avoid binge munching between meals. Opt for healthy soups and salads to address your cravings between meals. Stock up on fresh foods such as tender coconut water, unsweetened fresh juices, unflavored low-fat yogurt, dry fruits and nuts, and whole wheat crackers. 
  • Keep your blood sugar levels in check. Doctors advise regular glucose tolerance tests, especially if the mother has gestational diabetes mellitus. However, a pregnant woman should monitor her blood sugars at home at regular intervals following meals. This will allow them to make appropriate lifestyle changes in turn preventing excessive weight gain. 
  • Engage in moderate physical activity. Continue with exercising once your doctor has given you the go-ahead since exercise during pregnancy is very important and if you feel tired, continue with brisk walking. You may also opt for swimming as an alternative to ensure overall physical well-being. Remember not to pick up anything heavy or bend down directly. Instead, bend your knees while reaching down.
  • Ensure mindfulness and avoid stress. The psychological health of pregnant women greatly influences the kind of lifestyle they maintain. Feeling stressed or depressed from having to manage pregnancy changes, domestic chores, and childcare may impact the eating and sleeping patterns. This can, in turn, influence weight gain during the second pregnancy. Pregnant women may find help in the form of family, friends, and other distractions to keep themselves happier.
protip_icon Quick tip
Taking care of a child while pregnant can be taxing. So pay attention to your mental well-being and take some ‘me-time’ to relax and decompress.

Frequently Asked Questions

1. Will I gain more weight in my second pregnancy?

According to a recent study, wavering weight in the first pregnancy in women with average weight often recurs in subsequent pregnancies (7). In fact, a 2010 study highlighted that women who had excess weight gain in their first pregnancy were likely to have a higher weight gain in their second pregnancy. On the other hand, women with inadequate weight gain will likely have inadequate weight gain in their second pregnancy (8).

2. Will my belly be bigger in the second pregnancy than in the first?

An expecting mother may have a bigger belly in the second pregnancy. However, it isn’t always the case. Mothers may have a bigger belly in the second pregnancy, especially in cases where the mother has not lost her belly fat from the previous pregnancy.

3. Is a second pregnancy easier than the first?

According to gynecologist & obstetrician Dr. Nisarg Patel, “Some women may find their second pregnancy easier than their first because they are more familiar with the process and know what to expect. They may also have fewer symptoms of nausea, fatigue, or anxiety. However, other women may find their second pregnancy harder than their first because they must deal with the physical and emotional demands of caring for another child while pregnant. The best way to cope with a second pregnancy is to take good care of yourself and seek support from your partner, family, friends, and healthcare provider.”

4. What are the health implications of excessive weight gain during pregnancy?

Excessive weight gain during pregnancy can lead to several health complications for both the mother and the baby and increase the likelihood of needing a C-section. It can increase the risk of developing gestational diabetes, preeclampsia, and postpartum weight retention. It can also be harder to lose the extra weight gained during pregnancy, which can lead to long-term issues such as cancer, cardiovascular disease, and mental health problems (9).

Each pregnancy is different, bringing different experiences with it. Hence, you may notice that weight gain during your second pregnancy may vary from the first one. There are many contributing factors as to why there is this fluctuation. In most cases, this may not be a cause for concern. However, to prevent the weight gain from turning into maternal obesity, it is always safe to inform your Ob/Gyn about an increased weight gain and other discomforts you notice during your pregnancy. Then, based on their diagnosis, they shall look into the matter and put your thoughts at ease.

Infographic: Extra Care During The Second Pregnancy

Being on the pregnancy journey before, you would be more aware and experienced this time. So, as you embark on your second pregnancy, our infographic is here to offer some valuable tips and tricks for caring for yourself and your growing family to ensure a healthy and positive experience throughout the pregnancy.

extra care during the second pregnancy (infographic)

Illustration: Momjunction Design Team

Illustration: Why Is Weight Gain During Second Pregnancy Different From The First?

Weight Gain During Second Pregnancy_illustration

Image: Stable Diffusion/MomJunction Design Team

Gaining weight during pregnancy is normal and important. Learn how much weight you should gain and how to do it safely.

Personal Experience: Source

References

MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
  1. Edyta Suliga et al.; (2018); Factors associated with gestational weight gain: a cross-sectional survey.
    https://pubmed.ncbi.nlm.nih.gov/30509248/
  2. How does a second pregnancy differ from the first?
    https://www.tommys.org/pregnancy-information/im-pregnant/ask-a-midwife/how-does-second-pregnancy-differ-first
  3. Abdominal separation (diastasis recti)
    https://www.pregnancybirthbaby.org.au/abdominal-separation
  4. Weight gain in pregnancy.
    https://www.pregnancybirthbaby.org.au/weight-gain-in-pregnancy
  5. 11 tips for managing your weight in pregnancy.
    https://www.tommys.org/pregnancy-information/im-pregnant/weight-management/11-tips-managing-your-weight-pregnancy
  6. Managing your weight gain during pregnancy.
    https://medlineplus.gov/ency/patientinstructions/000603.htm
  7. Rollercoaster weight changes can repeat with second pregnancy, especially among normal-weight women.
    https://www.sciencedaily.com/releases/2019/11/191114115944.htm
  8. Jeanette R Chin et al.; (2010); Gestational weight gain in consecutive pregnancies.
    https://pubmed.ncbi.nlm.nih.gov/20816151/
  9. Consequences of Gestational Weight Gain for the Mother; Weight Gain During Pregnancy: Reexamining the Guidelines.
    https://www.ncbi.nlm.nih.gov/books/NBK32818/

Community Experiences

Join the conversation and become a part of our nurturing community! Share your stories, experiences, and insights to connect with fellow parents.

Dr. Michael Tahery is an American board-certified obstetrician and gynecologist practicing in Los Angeles for more than 20 years. He graduated in ob/gyn from the University of New York and Advanced Pelvic Surgery and Urogynecology from The Mayo Clinic.

Read full bio of Dr. Michael Tahery
  • Dr. Nisarg Patel
    Dr. Nisarg PatelMBBS, MS Dr. Nisarg Patel is a gynecologist, obstetrician, and laparoscopic surgeon from Ahmedabad, India, with over 13 years of experience in the field. He did his post graduation in Obstetrics and Gynecology from Pravara Institute of Medical Sciences, Ahmednagar, and holds a fellowship of Reproductive Medicine.
    Dr. Nisarg Patel is a gynecologist, obstetrician, and laparoscopic surgeon from Ahmedabad, India, with over 13 years of experience in the field. He did his post graduation in Obstetrics and Gynecology from Pravara Institute of Medical Sciences, Ahmednagar, and holds a fellowship of Reproductive Medicine.
Ria Saha
Ria SahaB.Tech
Ria is a techie-turned-writer and writes articles on health, with special emphasis on nutrition. She did her B.Tech from West Bengal University of Technology and was previously associated with IBM as SAP ABAP technical consultant.

Read full bio of Ria Saha
Swati Patwal
Swati PatwalM.Sc. (Food & Nutrition), MBA
Swati Patwal is a clinical nutritionist, a Certified Diabetes Educator (CDE) and a toddler mom with more than a decade of experience in diverse fields of nutrition. She started her career as a CSR project coordinator for a healthy eating and active lifestyle project catering to school children.

Read full bio of Swati Patwal
Lorraine is a postgraduate in Life Science from Mount Carmel College and previously worked as a freelance scientific illustrator. As a project associate and lab technician at the Centre for Cellular and Molecular Biology, Lorraine received valuable insights into Covid-19, transgenerational epigenetic inheritance, and neuro-degenerative diseases.

Read full bio of Lorraine Teron