Pregnancy Encyclopedia – Understanding Week 5

When you are 5 weeks pregnant, your body will experience strong symptoms. These symptoms can leave you feeling sick, extremely tired and overwhelmed! Some women may even faint or experience tender breasts. However, there is nothing to worry as you will soon feel better and glowing.

The Baby

Your baby is now 5mm long. It is approximately of the size of an apple pip and growing really fast. It is now forming a heart, and developing brain, spine and nerves. The yolk sac meets all of the needs of embryo. Pregnancy hormones are released and produce first red blood cells of baby. The cell division is accelerated and the third layer, located between the ectoderm and endoderm, called the mesoderm, is forming. Mesoderm helps in forming the circulatory system, spleen, the bone marrow, and lymph vessels. This is also the time when the first blood cells of your baby appear.

Your Body

The makes women notice the first changes to their bodies. Right from breast tenderness to morning sickness, increased need for urination and total weight gain of about 1 pound. Your body and baby are going through rapid changes and you will likely notice the intensification of the signs, symptoms and discomforts present in the previous week. Some new mothers may not experience any disturbances at all at this time. If this is your case too, you do not have to worry. You are just lucky!


You should focus on getting a lot of fresh air. Vitamin D is crucial for your baby’s development. So try and get a 15 minute walk in the sun daily. You need to take care of your health via taking healthy food or supplements. Avoid certain foods such as unpasteurized dairy products, raw meat and fish, unpasteurized juices, raw eggs, liver pate etc.  Also avoid certain physical activities such as skiing, snowboarding, horseback riding, or combat sports. Keep taking supplements recommended by the doctor. Iron and folic acid are specifically important at the beginning of the pregnancy. You need to stay hydrated. Also stay cool as overheating in the first trimester could be harmful to your baby.

Pregnancy Monthly (Week by Week) Guide


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