Your baby’s eyes don’t start out like you’d expect – and, actually, they don’t look much like eyes until the end of your first trimester.
As your baby’s eyes first start to form, they’re actually outgrowths from the developing brain. Beginning at 6 weeks of pregnancy, these growths start to fold inward and form two cup-like structures. As these structures enlarge, they remain connected to the brain by a stalk that will eventually house the main optic nerve.