Fatigue in early pregnancy is very normal. Many changes are occurring as the new pregnancy develops, and women experience this as fatigue and an increased need for sleep. Lower blood pressure level, lower blood sugar levels, hormonal changes due to the soporific effects of progesterone, metabolic changes, and the physiologic anemia of pregnancy all contribute to fatigue. Women should check with their health care provider to determine if an additional work up, prenatal vitamin changes, and/or supplemental iron would be beneficial.
Missing a period is usually the first signal of a new pregnancy, although women with irregular periods may not initially recognize a missed period as pregnancy. During this time, many women experience a need to urinate frequently, extreme fatigue, nausea and/or vomiting, and increased breast tenderness. All of these symptoms can be normal. Most over-the-counter pregnancy tests are sensitive 9-12 days after conception, and they are readily available at most drug stores. Performing these tests early helps to allay confusion and guesswork. A serum pregnancy test (performed in a provider’s office or laboratory facility) can detect pregnancy 8-11 days after conception.