For many people, a missed period is the first signal that they're pregnant. However, this often isn't the first sign of pregnancy your body gives you. From hormonal changes to swollen breasts or ...

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 ...

• Pregnancy can cause surprising symptoms like bleeding gums, nasal congestion, and skin changes due to hormonal shifts and increased blood flow. • Many pregnancy-related symptoms, such as ...

A leaky heart valve occurs when a heart valve doesn’t close properly, allowing blood to flow backward. During pregnancy, this condition can affect circulation and increase strain on your heart. A ...