Common signs of potential pregnancy include, but are not limited to, missed menstrual periods, fatigue and frequent urination, according to Mayo Clinic. Pregnant women may also experience waves of nausea that may begin within the first three weeks following conception. Symptoms of nausea may be accompanied by vomiting.
Pregnant women may also experience light spotting and cramping that may be mistaken for a menstrual period. However, these symptoms often occur when the fertilized female egg becomes attached to the wall of the uterus, explains WebMD. Breast tenderness is another common sign of pregnancy that may be accompanied by darkened nipples or a heavy sensation in the breasts.
Pregnancy symptoms can vary from woman to woman, but may also include headaches due to hormonal fluctuations, and unusual food cravings, explains the American Pregnancy Association. Additional symptoms include sensitivities to certain smells, constipation, lower back pain and heartburn. It is important for women who believe they may be pregnant to take a pregnancy test as soon as possible.
Women who test positive on home pregnancy tests should consult with a physician as soon as possible to confirm their results with a blood test, explains Womenshealth.gov. Home pregnancy tests can also give false-negative results when the tests are taken too early or if there is an issue with the pregnancy.