First trimester of pregnancy: news from week 4

  • Missed period is the earliest promising sign till now.
  • Breast tenderness, fatigue,nausea,lower backache may begin.
  • One can take UPT near the time of expected menstruation period if it has not occurred yet. It is highly sensitive to human gonadotropin hormone secreted by embryo. Early morning urine test is recommended as urine is most concentrated at this time.
  • One should avoid heavy weight lifting, radiation, vigorous exercise, infectious environment, dehydration ,self medication.
  • At week 4 embryo is just the size of a poppy seed.
  • 3 layers of this embryo will develop into nervous, cardiovascular and other systems eventually
  • At this stage embryo is rapidly developing. It gets nutrients from umbilical cord.