First trimester

Week 7 of Pregnancy

Facial features outline and limbs lengthen. Morning sickness is usually at its strongest.

Fetal size
Blueberry
Length
1 cm
Crown-rump (CRL)
Weight
1 g

Fetal development

  • The outlines of eyes, nose and mouth begin to take shape.
  • Webbed hands and feet form (digits will separate later).
  • The brain grows rapidly.

Maternal changes

  • Nausea may last most of the day.
  • A growing uterus can cause mild abdominal pressure.

Recommended checkups

  • Severe vomiting with weight loss may indicate hyperemesis gravidarum (HG) — call your OB if you cannot keep fluids down.

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Textbook averages. Individual variation is wide and this is not medical advice — confirm with your OB.