5th Week of Pregnancy: An Orange Seed Sized Baby!

Four weeks have passed and you are 1 month pregnant now. However, most women learn about it by the 5th week of pregnancy. The baby is already inside you and working hard to grow. Your body is responding to these changes now.

What Happens in the 5th Week of Pregnancy?

At 5 weeks pregnant, you have an embryo inside of you. Despite the embryo being a wee bit in size, it has already taken up a lot of work for fetal development.


Expecting mothers may not see a visible bump as of yet. But inside their belly, a hive of changes are happening. To host the baby, your body will undergo tremendous changes. 5 weeks pregnant belly prepares the body to suit these changes. Your uterus will start to grow in size. The levels of your pregnancy hormones will take a steep rise. Majorly, hormones like estrogen, progesterone and hCG will upsurge in large quantities.

Estrogen keeps the other two hormones where they are supposed to be. Progesterone is responsible for maintaining the functions of the placenta and restoring breast tissue growth. It also resists the uterine muscles from contracting. hCG, on the other hand, regulates the amount of progesterone and supports the baby while the placenta develops. These chemical signals are being mass-produced by your body by the time you are 5 weeks pregnant.

Also read about: Bodily Changes Pregnant Women Had To Deal With


Imagine one grain of rice or a seed of an orange. That is the 5 weeks pregnant baby size. Though small, the baby is undertaking some of the very prominent tasks. The 5th week of pregnancy is the beginning of the embryonic period. The placenta is being rapidly formed and the embryo slowly begins to look like a fetus.

This week, the baby also continues to develop the neural tube, which later forms structures like the brain and spinal cord. The blood circulation system also becomes operational in the baby by the time you are 5 weeks pregnant. The baby’s heart, which is made of two channels at this point, begins beating.

5 Weeks Pregnant Symptoms

Your 5 weeks pregnant belly is basically constructing a little human being. You should expect to feel an ocean of symptoms. Though 5 weeks pregnant symptoms are different for everyone, some common signs include:

  • Food cravings and aversions
  • Fatigue
  • Nausea
  • Excessive saliva
  • Morning sickness
  • Frequent urination
  • An acute sense of smell
  • Cramping
  • Breast changes
  • Constipation
  • Vaginal discharge
  • Lightheadedness
  • Mild swelling in fingers and toes

Also read about: 5 Early Signs Of Pregnancy

Guidance for 5th Week of Pregnancy

It is about time that you start taking additional care of your mental and physical self. Here are some tips you should follow:

  • If you have a cat, stay clear of its litter box (you could catch and an infection called toxoplasmosis)
  • Go to the dentist for teeth cleaning
  • Have a prenatal visit
  • Avoid foods that irritate your stomach
  • Soothe an upset stomach
  • Exercise safely
  • Take proteins and prenatal vitamins

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