Fetus at week 38, computer illustration.

Fetus at week 11, computer illustration.

Fetus at week 33, computer illustration.

Fetus at week 21, computer illustration.

Fetus at week 17, computer illustration.

Fetus at week 5, computer illustration.

Human fetus at week 31 of gestation, illustration

Foetus at week 27, illustration

Foetus at week 4, illustration

Foetus at week 16, illustration

Foetus at week 39, illustration

Foetus at week 29, illustration

Three week old embryo, computer artwork.

Human fetus age 31 weeks

Human fetus age 31 weeks

Illustration of a human foetus, week 31.

Illustration of a pregnant woman at week 31

Illustration of a human foetus, week 31.

Illustration of a pregnant woman and 31 week foetus.

Embryo during the late period of the 4th week, computer illustration.

Embryo during the middle part of the 4th week, computer illustration.

Embryo during the late period of the 4th week, computer illustration.

Embryo during the late period of the 4th week, computer illustration.

Embryo during the middle part of the 4th week, computer illustration.

"Human fetus, computer illustration. "

Foetus at 31 weeks, artwork

Foetus at 31 weeks, artwork

Foetus at 31 weeks, artwork

Foetus at 31 weeks, artwork

Close-up of a blood pressure gauge

Medical illustration of fetus development at 9 weeks.

Sagittal section of spinal cord at 12 weeks' gestation, showing the nerves, vertebral bodies, and cervical (pink), thoracic (orange), lumbar (yellow), sacral (brown), and coccygeal (green) segments.

Foetus at 7 weeks, artwork

Foetus at 13 weeks, artwork

Foetus at 16 weeks, artwork

Embryo at 5 weeks, artwork

Fetus at week 31, computer illustration.