First Trimester 7 weeks pregnant

Pregnancy Week 7 - Brain Growth & Hand Plates Form

Your baby is about the size of a blueberry at 7 weeks. The brain is growing at an astonishing rate, generating new cells rapidly. Hand plates that will become palms and fingers are forming, and the heart has divided into left and right chambers.

Blueberry
Baby Size
1.2 cm
Length
Less than 1 gram
Weight
Week 7
of 42
Baby Development This Week

The brain is developing at a remarkable pace, generating about 100 new brain cells every minute. The heart has now divided into left and right chambers and is beating at 150-160 bpm. Arm and leg buds are growing longer, and hand plates that will become your baby's palms and fingers have formed. The appendix and pancreas are developing, and the liver is busy producing red blood cells. Tiny nostrils are becoming visible, and the lenses of the eyes are forming.

Changes in Your Body

Your uterus has grown to about the size of a grapefruit, though you will not show yet. Morning sickness may be at its peak. You might notice changes in your skin, such as breakouts or increased oiliness due to hormonal changes. Some women develop a heightened sense of smell, which can trigger nausea. You may need to urinate even more frequently as your kidneys process extra waste.

Common Symptoms at Week 7
Nausea and vomitingBreast tendernessFatigueFrequent urinationFood aversionsAcne breakouts
Tips for Week 7
  • Eat foods rich in DHA and omega-3 fatty acids to support your baby's brain development.
  • Avoid strong-smelling foods that trigger your nausea.
  • Use a pregnancy-safe sunscreen as your skin may be more sensitive to the sun.
  • Start doing Kegel exercises to strengthen your pelvic floor muscles.
When to Call Your Doctor

Contact your healthcare provider if you cannot keep fluids down for 24 hours, or if you experience heavy bleeding, severe pain, or fever.

Frequently Asked Questions — Week 7