Nausea, vomiting, breast tenderness and swelling, tiredness, mood swings, cramping, bloating, and of course no periods are all normal symptoms of early pregnancy.
Nausea and vomiting are very common symptoms of early pregnancy. This usually improves by the beginning of the second trimester. For more information see Nausea and Vomiting in the first trimester.
Breast tenderness and swelling are other very common early signs of pregnancy. The breasts are changing and starting to make the necessary apparatus to produce milk. This can cause swelling and tenderness. The tenderness usually gets better by the beginning of the second trimester. The swelling will continue and growth will likely increase throughout the pregnancy.
It is very normal to feel tired during pregnancy. The body is spending a tremendous amount of energy growing a baby. This leaves less energy to do the things you are used to doing. Don’t be surprised if you need a nap during the day.
Cramping is another common early symptom of pregnancy. As the uterus grows it will cramp some. As long as this is not severe or accompanied by bleeding, this is nothing to be alarmed about. It is also common to experience some pain in the lower abdomen especially when first getting up or when moving suddenly. This is called round ligament pain and is caused by stretching of the ligaments by the growing uterus. Severe pain is not normal and should be evaluated immediately.
Bloating and increased gas are also common symptoms. The increasing hormones cause the bowels to empty more slowly. This can cause more gas as well as bloating.