Week 4 pregnancy


What's happening in week 4 of your pregnancy?


Your baby is the size of a poppy seed. Your baby is still a ball of cells, which is called a blastocyst. Soon, part of the blastocyst will develop into an embryo, which will grow into your baby.


Your uterus lining is thick with nutrient-rich blood. Your uterus has been preparing for this moment to nourish your tiny baby with nutrients from the food you eat, so it's important to have a healthy diet.


Week 4: How is your baby's brain developing?


Your baby's neural tube starts to develop in the first month of pregnancy. This will later become your baby's brain, spinal cord and nervous system.


You can help your little one's brain growth by consuming 200 milligrams of DHA and 46 grams of protein daily at this pregnancy stage. Having too little protein can affect developing brain areas involved in memory and language.


What pregnancy symptom might you experience this week?

You may experience headaches, a common pregnancy symptom due to hormonal changes. These lifestyle modifications may soothe the pain and boost pregnancy health:


Monitor your pregnancy diet. Eliminate food that may be triggers for headaches and migraines, especially processed food.


Drink more water. Dehydration can be a source of frequent headaches.


Seek medical help if the pain is severe as it may indicate conditions like anemia or preeclampsia.


Mom’s Tip of the Week


If you don’t have an obstetrician yet, it’s a good time to start researching options. Ask your friends who have given birth before, or join an online support group or forum for recommendations.




  1. http://canada.prod.meadjohnson.net/en/my-pregnancy/pregnancy-development-calendar/month-1/month-1-of-pregnancy-milestones

  2. http://canada.prod.meadjohnson.net/big-deal-about-dha

  3. http://canada.prod.meadjohnson.net/en/my-pregnancy/nutrition-for-moms/nutrient-guide-for-moms/protein

  4. MJN_Prenatal_W4_FINAL (http://www.enfamama.com.ph/articles/babys-development/your-baby%27s-development-week-4#)

  5. http://www.thebump.com/a/headaches-during-pregnancy