Corrections & Clarifications: An earlier version of this story misstated how to calculate pregnancy duration. It has since been updated. If you think there's a chance you might be pregnant, you want ...

High-risk pregnancy doctor Shilpi Mehta-Lee joins WIRED to answer the internet's burning questions about pregnancy. Do babies cry in the womb? How do ultrasounds work? What is Vanishing Twin Syndrome?

Pregnancy hormones can cause changes to a woman's eyes, including dryness and corneal thickness. Women with diabetes may experience a worsening of diabetic retinopathy during pregnancy and require ...