Week 5 of Pregnancy

Your baby is growing rapidly and now resembles a tiny tadpole about 2mm long. The neural tube — which will become the brain and spinal cord — is forming. The heart is beginning to develop and may start beating this week.

Three layers of cells (ectoderm, mesoderm, endoderm) are differentiating into all of your baby's organs and tissues. The foundations for the circulatory system, digestive system, and nervous system are all being laid down.

During week 5, you may be experiencing some of the classic first-trimester symptoms. Morning sickness (nausea and vomiting) is common and can occur at any time of day. You might feel unusually tired as your body works hard to support your growing baby.

Breast tenderness and swelling are typical as your body prepares for breastfeeding. You may notice increased urination as your uterus grows and presses on your bladder. Some women experience food aversions or cravings, heightened sense of smell, and mood swings due to hormonal changes.

Light spotting can be normal, but always mention any bleeding to your healthcare provider. Constipation and bloating are also common as pregnancy hormones slow down digestion.

Take your prenatal vitamins: Folic acid is especially important in early pregnancy to help prevent neural tube defects. Take your prenatal vitamin daily, ideally with food to reduce nausea.

Stay hydrated: Drink at least 8-10 glasses of water daily. This helps with fatigue, constipation, and supports amniotic fluid production.

Eat small, frequent meals: Combat morning sickness by eating smaller meals more often throughout the day. Keep crackers by your bedside for early morning nausea.

Rest when you can: First-trimester fatigue is real and your body is working incredibly hard. Don't feel guilty about needing extra sleep or rest.