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Fatigue During Pregnancy

Medically Reviewed by Mary Sweeney, BSN, RN, CEN
Is it normal to always be tired when pregnant?

Are you struggling to stay awake throughout the day now that you’re pregnant?

Many women associate fatigue with pregnancy. It is an oh-so-common part of the journey to motherhood.

While you may feel some degree of fatigue during your entire pregnancy, there are ways to help increase your energy levels.

It’s also important to understand why you are feeling so tired, and what you can do to make sure you are taking care of yourself during your pregnancy journey.

When Does Pregnancy Fatigue Start?

While the most common sign of pregnancy is a missed period, some women recall extreme fatigue being one of their first indicators.

Mothers who have already given birth will tell you there seems to be a significant difference between regular fatigue and pregnancy fatigue.

The fatigue can be experienced very early on, even just one week after conception. However, don’t immediately associate fatigue with pregnancy — there are many other reasons you could be feeling extra tired!

Now, if you are experiencing a combination of pregnancy symptoms like a missed period, unexplained nausea, tender breasts, and fatigue — you very well may have a bun in the oven.

1. First Trimester Fatigue

It takes an incredible amount of energy to create a human! In the first trimester, you can definitely expect to feel more tired than usual. Your body is adjusting to a huge jump in hormone levels, and your baby is forming all of his or her major organ systems.

Your increased hormones can cause you to become sleepier all on their own. Not to mention you will be experiencing lower-than-normal blood sugar and blood pressure levels.

All of the physical and emotional changes you are going through during this time can be enough to cause extreme exhaustion (1).

Don’t be alarmed, but you will probably be blindsided by just how much your energy levels can deplete during this trimester.

2. Second Trimester Fatigue

The second trimester is often described as being like a second wind. You will almost feel like yourself again, minus the growing tiny human inside you, of course.

Some women, however, can experience extreme fatigue carried over into their second trimester. Although it may still be present, there is hope — it should decrease once the placenta has been fully created (2).

If your fatigue levels still seem to be extreme during this trimester, it is best for you to relay that information along to your doctor.

The second trimester is usually the time when you have enough energy actually to get stuff done. Many moms will finalize the nursery and get everything prepared before the third trimester rolls around.

So you’re feeling pretty good now, huh? Don’t be fooled by all of your newfound energy. You will notice your energy levels start to dwindle again with the arrival of the third trimester.

3. Third Trimester Fatigue

The third trimester can lead to fatigue because now you are carrying around all that extra baby weight. Not only are you carrying around a baby, but you are also dealing with increased blood volume, the weight that you have put on from eating for two, amniotic fluid, AND a placenta! It can be exhausting having to go through your day-to-day activities with a bowling ball and its accessories accompanying you wherever you go.

It’s likely you are becoming restless at night, having trouble getting comfortable, and making frequent trips to the bathroom.

The combination of all of these would leave even the best of us feeling super tired. One of your favorite parts of the day is probably crawling into your bed, and there should be no shame in that!

You need all the rest you can get because once your little one is here, you probably won’t remember what crawling into your bed feels like, let alone sleep through the night!

Maybe You’ll Sail Through

All pregnancies are different so that you may be an exception. If you are lucky enough to maintain your energy levels for most of your pregnancy, enjoy it! Increased energy levels may soon be a thing of the past, so take advantage of them while you still can! Your baby will take up most of your time and energy in the beginning stages, so be sure to enjoy yourself in these last weeks!

Why Does Pregnancy Make You Tired?

It’s hard to believe that such a little baby that hasn’t even been born yet is already impacting your energy levels, and there are many reasons why that’s true. Many people think that you won’t be tired until you start sporting a baby bump, but boy are they wrong! .

Your body is busy adjusting hormones to maintain your body’s health and the developing baby inside of you. The idea of supporting your life and another one should be a solid indication of why you are tired (3).

There are several medical reasons why you may feel tired. Nausea and vomiting from morning sickness can leave you feeling weak and tired. Other conditions such as anemia, low blood sugar, depression, or hypothyroidism can also contribute to energy levels. If you suspect any of these, it is a good idea to talk to your doctor.

It is important to try and replenish as many nutrients as possible when enduring morning sickness. Dehydration during pregnancy and lack of food can cause low blood sugar and can make you more tired. They can also cause other issues for you and your baby.

Your nightly sleep has probably been interrupted because you aren’t able to get comfortable, you have to make an excessive amount of trips to the bathroom, or maybe you are having leg cramps. You will be amazed at how many times you can still wake up in the middle of the night even though you are exhausted.

Remember, there are many reasons why you could be feeling fatigued. During that first trimester, you are trying to go through your daily routine, all while your body is busy trying to create organs.

Don’t Beat Yourself Up

If you aren’t able to accomplish all of the things you used to be able to, don’t get down on yourself. Creating a life sure seems like a pretty significant accomplishment, don’t you think?

Can Being Tired Hurt Your Baby?

As long as you don’t have any underlying health conditions, fatigue is just a normal part of pregnancy.

The process of creating a life is a daunting task, but it is not harmful to your baby.

Feeling fatigued is a sign your body is properly making accommodations for your baby. It is likely the circulating hormones are the culprit for your first episodes of fatigue (4).

Can Fatigue Be A Sign Of A Health Problem?

Fatigue is a common symptom of many illnesses. It is an extremely common symptom of pregnancy, so if it is a side effect of another issue, your pregnancy can cause it to become easily overlooked.

When pregnant, if you are feeling crazily fatigued and you think there might be another issue, there are several health problems that could be the culprit.

  • Anemia: Pregnancy puts you at an increased risk of developing an iron deficiency. A lack of iron causes you not to have enough red blood cells to transport oxygen to your tissues. This can leave you feeling exhausted and weak (5).
  • Depression: Feeling tired is a common side effect of depression. If you are feeling hopeless, extremely sad, or unable to complete your daily activities, depression may be to blame. If you believe you are suffering from depression, you should reach out to your doctor (6).
  • Hypothyroidism: If identified, hypothyroidism can be easily treated. It is difficult to notice because many of the symptoms are also related to pregnancy. If you notice increased fatigue, constipation, or an intolerance to heat, those are signs that you may have hypothyroidism (7).
  • Gestational Diabetes: Extreme fatigue could be a symptom of gestational diabetes. This is diabetes that occurs when you are pregnant and is generally gone shortly after you give birth. The hormones in your body can interfere with your insulin production, which can cause you to not be able to fully regulate your blood sugar. Doctors will administer a glucose test to check for this in the second trimester. This can also be accompanied by extreme thirst and frequent urination (8).

If you have any concerns you could have an underlying issue, you should contact your doctor. A major red flag is if your fatigue hits you rather quickly and it does not lessen even after a significant rest.

How To Deal with Pregnancy Fatigue

While fatigue is inevitable, there are ways for you to restore a little more energy into your daily routine.

  1. Rest: You may feel like you have to be superwoman and get everything done, but you need your rest. You shouldn’t expect to accomplish just as much now as you did before you were pregnant. It is okay for that load of laundry to wait until tomorrow. Try to cherish these last moments of you being the priority and make sure you are taking care of yourself. Go to bed early, take that extra nap, you have more than earned it.
  2. Ask For Help: If you feel pressured to accomplish a number of tasks, don’t be afraid to ask your partner to take over some responsibility. Some women feel guilty doing this, but it’s ok to ask for help. You are a team, help each other out. You and your partner are in this together. Being pregnant is a full time job, so asking for help with the groceries or chores around the house is definitely warranted.
  3. Exercise: If you are already tired, exercise is probably the furthest thing from your mind. Exercising doesn’t mean you need to go run a marathon or lift weights at the gym, but a 30-minute walk outside can have significant benefits. This moderate exercise can actually leave you feeling more energized. Be sure to check with your doctor before beginning any exercise routine if you did not exercise regularly before you were pregnant. These days, there are lots of cute exercise clothes for pregnant women — so have some fun with it. As a side benefit, you can wear your maternity workout clothes in the first few weeks after delivery when you’re still trying to lose that baby weight. Swimming is a great exercise option for pregnant women. The water can take the strain off your body by making you feel almost weightless.
  4. Watch Your Diet: You are eating for two these days, and if you are slacking in the meals department, you could be adding to your fatigue. Your body relies on extra nutrition, and eating often can help maintain your blood sugar levels. If your blood sugar gets low, it can directly affect your energy levels. A healthy well-balanced diet is the best option for you and your growing baby. You can dodge those super fatiguing sugar crashes by avoiding the worst of your pregnancy cravings. Eat a diet with a healthy balance of protein and healthy carbohydrates to maintain blood sugar levels.
  5. Avoid Caffeine: You may be tempted to indulge in some coffee to help give you a quick energy boost, but the crash will leave you feeling more fatigued than before. Caffeine is also a stimulant, so it is best to avoid it during your pregnancy, or at least limit it to under 200 milligrams per day.
  6. Cut Back Before Bed: If you drink a lot of water before bed, you are only adding to the bathroom trips you will have to take in the middle of the night. By cutting back on liquids even an hour before bed, you can decrease the amount of middle-of-the-night bathroom breaks. However, staying hydrated is an essential part of pregnancy, so make sure you are drinking plenty of fluids throughout the day.
  7. Take A Bath: A bath can be the perfect method of relaxation. Not only will it help rejuvenate you, but it can also soothe your aches and pains. Just make sure the water isn’t too hot because that can pose a danger to your baby. Also, towards the end of your pregnancy, you can become a little top-heavy. Make sure you are able to safely get in and out of the bathtub, and ask for help if you think you’ll have trouble.
  8. Prenatal Massage: If you have trouble unwinding, a prenatal massage could be the perfect solution. This will force you to get some much-needed relaxation. Pregnancy can leave you feeling tense, and a prenatal massage can help heal your aches and pains, and it promotes better sleep. Find a massage therapist that has been specially trained in prenatal massage.
  9. Be Realistic: Don’t set goals and expectations that you know are going to be difficult to achieve. This will only cause you to push yourself much harder than you need to and will probably leave you feeling disappointed.
  10. Hang In There: Your fatigue may be getting the best of you, but it won’t last forever. Just take it one day at a time. Pretty soon you will have your beautiful baby keeping you company at all hours of the night and day! If your fatigue is impacting your daily life significantly, mention it to your doctor. He or she may have recommendations to help you get some much-needed energy back.


Don’t fight the urge to rest or take a nap. The changes occurring within your body are very demanding, and it’s only human for you to have to catch some extra sleep, no matter the time of day.

When Does Pregnancy Fatigue End?

You are probably going to experience some fatigue throughout your pregnancy. There will be times when it seems to be steady, but there will also be times when your fatigue appears to spike upwards.

Fatigue levels typically vary by each trimester. For example, hormone-induced fatigue may end during the second trimester, but weight-bearing fatigue will begin during the third trimester.

Your body needs more rest now than it has in a long time, so make sure you take all the time you need to help restore your energy.

What’s the take-home message? Your body needs more rest now than it has in a long time, so make sure you take all the time you need to help restore your energy.

When your pregnancy ends, your pregnancy-related fatigue will diminish, but that doesn’t mean your days of being tired are over. Once your little baby makes his or her entrance into this world, a whole new type of fatigue begins.

The Bottom Line

You are going to be significantly more tired when you are pregnant. Remember, fatigue is a normal part of pregnancy, but it can sometimes be a symptom of an underlying issue. Don’t hesitate to voice any concerns to your doctor.

It is important you listen to your body and know when enough is enough. Don’t push yourself. If you are feeling exhausted, don’t be afraid to take a nap.

Your fatigue will probably peak in the first trimester, diminish in the second, and then return during the third. All pregnancies are unique, so your levels of fatigue can differ from those that are considered “normal.”

Pregnancy really is an adventure. You are going to experience numerous ups and downs, but remember it’s a marathon, not a sprint. You will reach the finish line in due time, and the wait will be worth it.

Headshot of Mary Sweeney, BSN, RN, CEN

Medically Reviewed by

Mary Sweeney, BSN, RN, CEN

Mary Sweeney, BSN, RN, CEN is an oncology nurse navigator and freelance medical writer. Mary has 4 years of experience as an officer in the Navy Nurse Corps. including emergency/trauma, post-anesthesia, and deployment medicine.