Foetus at 4 months - Sex

The external genitalia are almost defined and it may be possible to tell if it's a boy or a girl. Ovaries begin forming in girls and prostate gland in boys.

Attribution: Avallain

See also:

• Foetus urine production at month 4
• Checking foetus movement at month 4
• Foetus hair and bones at month 4
• Foetus facial expressions at month 4