Week 5 of pregnancy

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By now, you know that you missed your period. It is a major indicator that leads most women to take pregnancy tests. Week 5 of pregnancy is a common time for expecting moms to find out they are pregnant. When the news of the pregnancy breaks out, you will experience a rush of excitement and fear. 

The hormones would probably be giving tough time and it becomes quite hard to ignore them at this stage. You might experience the presence of the baby emotionally and physically, even though there will not be any physical signs of pregnancy.

By the time you notice that you are pregnant in week 5, you are already a month into pregnancy! Though there is plenty of time for the baby to develop and arrive in the world, there are a lot of complications and changes a woman has to go through during the entire course of pregnancy. This article illustrates what can you expect in week 5 of pregnancy-

What does week 5 of pregnancy look like?

It is most likely that by this week, you would’ve figured out your pregnancy. Congratulations! You are stepping into a very new and special phase in life. For many women, the first trimester is tough to go through because the pregnancy hormones cause changes in the body, emotionally and physically.

The hormones that are helping the 5-week embryo grow and build may cause some uncomfortable symptoms. These symptoms mostly decrease after the first trimester. 

You might feel bloated and think that you have gained a pound or you might feel like you have lost weight due to fatigue and tiredness. Either way, it is very normal for women to experience such changes and as long as you are maintaining a healthy lifestyle, there isn’t much you should worry about.

You’ll have a series of blood tests and visits to the doctor to make sure you and your baby are perfectly fine. There will be an appointment for an antenatal scan at week 7, to rule out any abnormalities in the pregnancy. It is crucial to follow your antenatal schedule henceforth to minimize the complications related to pregnancy.

Fetal development at week 

The size of the baby at week 5 is around 1/7th of an inch from the top to bottom, almost the size of an apple seed. At this stage, the embryo is all geared to grow double the size next week. 

Layers of the embryo

The structure of the embryo is kind of like tadpole, with a neural tube that runs from top to bottom of the structure. The baby develops three layers of structure at this point. There might be a small blip formation, which later develops to become the heart of the baby.

  • The ectoderm: This outer layer forms the skin, nervous system, ears, eyes, etc.
  • The mesoderm: It develops into a circulatory system of blood through heart, bones, muscles and kidneys.
  • The endoderm: It later develops into lungs, intestine and liver.

Also, a gestational sac is formed around the baby. It is a ball of fluid which protects and nurtures the embryo.

What are the symptoms?

As you complete the first month of pregnancy, the hormonal changes start to elevate, causing drastic and volatile changes in the body. This is just the beginning of the complications associated with pregnancy and changes that the body goes through. The first trimester is the toughest to go through, so it is important to maintain a healthy lifestyle

Changes in breast

Your breast might feel sensitive, sore and larger. This is one of the early pregnancy symptoms which intensifies as the weeks go by.


As you go through hormonal changes and now that you carry and nurture another life, you might drain out of energy too quickly. The body is working over to nurture a new which results in lack of energy.

Week 5 of pregnancy

Frequent urination

You might have to go for frequent bathroom trips. It is because the pregnancy hormones can cause an increase in blood flow and fluid, causing frequent pressure over the bladder. The kidney got to work more to keep up with the hormonal changes. They are usually seen as the size of the baby increases as it decreases the size of the urinary bladder to make room.

Range of emotions

Along with the excitement and fear over pregnancy, the rise in pregnancy hormones can cause mood swings. You might actually get surprised by your own reaction. Believe us, either positive or negative, you are definitely normal and good to go.

Self-care tips

Learning about your pregnancy can make you overwhelmed. It can take a toll over your health. To reduce such symptoms, you can follow some self-care tips to tame down your emotions and have an easy ride during your first trimester. Keep calm and continue your meditation series.

End the pregnancy anxiety

Now that you know that you are pregnant, you can leave your fears about not getting pregnant. Relax yourself and avoid unnecessary worry over how you would proceed along this journey. Trust us, if you take care of yourself, everything will be good!

Take your prenatal supplements

As suggested in previous weeks, you should take prenatal supplements like vitamins and folic acid throughout your pregnancy. Folate is an essential nutrient to avoid neural tube defects. 

Make safe food choices

Now that you are pregnant, you not only have food for yourself but also for your baby. It is important to have a proper diet if you haven’t started already, quit over alcohol or tobacco consumption and shift to healthier lifestyle habits.

Special considerations

Weight check

You might find yourself worrying about pregnancy weight gain. Doctors will advise personalised weight gain recommendations with you, so there isn’t much you should be worrying about. Maintaining healthy weight would make you feel good and also the baby inside

General recommendations are as follows-

  • If your BMI is under 18.5, the total pregnancy weight gain would be recommended to be around 12 to 18 kg.
  • If you are of normal weight, i.e., a BMI of 18.5 to 24.9, the recommended pregnancy weight gain is 10 to 15 kg.
  • For the ones who are overweight, with BMI ranging from 25 to 29.9, the total recommended pregnancy weight gain would be 6 to 10 kg.
  • For those who suffer from obesity, BMI is above 30, the recommended pregnancy weight gain should be 4 to 8 kg.
  • For those who are expecting twins, the pregnancy weight gain is recommended to be 16 to 24 kg.

You might also like to know: Week 4 of pregnancy

Special conditions and precautions

Identify your due date

Your doctor would calculate your due date during your first prenatal visit, but of you can’t wait you can make your own calculations

Find the first day of your last menstruation and count 40 weeks forward

Blood group incompatibility

This is crucial for mothers with Rh negative blood group; for example, O negative, B negative and A negative. Such mothers, if they are having partners with Rh positive type, have a risk of developing serious complications. Depending on which pregnancy it is and if they have had any blood transfusions in the past, may need some interventions to avoid complications like Hydrops fetalis.

Ectopic pregnancy

It is a pregnancy that occurs outside the uterus, leaving the lives of the mother and the baby at stake. Usually, it occurs in the fallopian tubes. As these tubes don’t have enough lining to support the embryo, the pregnancy breaks off in the middle, causing a major life-threatening to bleed. These conditions are usually detected at the first antenatal scan and are best to be terminated.

Important checklist for week 2 pregnancy

  • Take up pregnancy test if you haven’t
  • Make the first antenatal appointment
  • Start taking prenatal vitamins if you haven’t
  • Start a pregnancy journal


Week 5 brings in the big news. It can bring a lot of changes in your life which can be overwhelming. It is normal to feel anxious when you are expecting. It is just the beginning. Make yourself prepared to experience this beautiful journey in your life.


Healthline.com: https://www.healthline.com/health/pregnancy#:~:text=Pregnancy%20occurs%20when%20a%20sperm,term%20pregnancy%20lasts%2040%20weeks.

Medicineplus.gov: https://medlineplus.gov/pregnancy.html

Womenshealth.gov: https://www.womenshealth.gov/pregnancy/youre-pregnant-now-what/stages-pregnancy


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