The document discusses early signs of pregnancy such as a missed period, fatigue, breast tenderness, nausea, frequent urination, dizziness, and changes in appetite or mood. It notes that a pregnancy test is needed to confirm pregnancy through urine or blood tests measuring hormones like HCG. An obstetrician specializes in prenatal care and pregnancy usually takes about 40 weeks. Common discomforts in pregnancy include nausea, fatigue, heartburn, swelling, and frequent urination while complications could involve bleeding, high blood pressure, headaches or abdominal pain.