Could you be pregnant? The proof is in the pregnancy test. But even before you miss a period, you might suspect — or hope — that you're pregnant. Know the first signs and symptoms of pregnancy and why they occur.

Some of the most common symptoms of pregnancy include missed periods, nausea or morning sickness, fatigue, breast tenderness, frequent urination, and mood swings. However, these symptoms can vary widely from person to person. If someone suspects they might be pregnant, a pregnancy test and consultation with a healthcare professional are recommended.