Drawing of a baby still a fetus inside a circle

Gestational Calendar

Check all important events of your prenatal care on Mother's Diary gestational calendar

Gestational Age Event
5 weeks Gestational sac visible on ultrasound
7 weeks Embryo visible with heartbeats
8 weeks Possibility to determine the baby's sex through maternal blood test (fetal sex determination)
13 weeks Best time for the First Trimester Nuchal Translucency or Morphological Examination, precise fetal sex identification
16 weeks Safe fetal sex determination, notice baby movements
20 weeks Beginning of feeling baby's movements
22 weeks Ideal time for the Second Trimester Morphological Exam and cervical length measurement
24 weeks Favorable period for 3D/4D ultrasound (up to about 29 weeks)
27 weeks Start of baby's hair growth
28 weeks Ideal time for fetal echocardiography
29 weeks Last chance for a high-quality 3D/4D ultrasound
32 weeks Assessment of fetal vitality with Fetal Biophysical Profile and Doppler Velocimetry
34 weeks Possibility of fetal survival in case of premature birth with low complications
37 weeks Baby is no longer considered premature
39 weeks Scheduling elective cesarean section, if desired
40 weeks Estimated due date (40 completed weeks)
41 weeks Most pregnancies are electively interrupted, either by induction or cesarean section
42 weeks Upper limit of a normal pregnancy, considered prolonged pregnancy