During the ninth week of pregnancy a baby is changing rapidly, but a mother may not be experiencing many new pregnancy symptoms. The symptoms she has been experiencing so far are likely to continue and possibly grow in intensity. Some women may also finally experience the early signs of pregnancy during the ninth week despite having felt few changes since pregnancy began.
If a woman has not already experienced mood swings in the early weeks of her pregnancy, by the ninth week she will. Baby Center explains that the mood swings appear between the sixth and 10th week of pregnancy, disappear at the start of the second trimester and return during the last few weeks before labor.
If morning sickness, called nausea and vomiting in pregnancy, is going to affect a pregnant woman, it will likely appear by the ninth week. Morning sickness is different for every woman and it also varies from one of a woman's pregnancies to another. Pregnant women may feel nauseated without vomiting. They may also feel sick throughout the day, not just in the morning. Morning sickness that develops at this point in a pregnancy should subside in four or five weeks.
Heartburn, gas and other digestive complaints make their appearance around the ninth week of pregnancy. The American Pregnancy Association points out that women often feel more bloated from this point in the pregnancy forward. Constipation can set in sometime during the first trimester and persist until the baby is delivered.
Fatigue can begin as early as the second week of pregnancy and last until the end of the first trimester. It will return again in the third trimester. The Mayo Clinic explains that this unusual tiredness is due to the heart pumping faster and harder to support the pregnancy. The increase in heart pumping results from normal circulation changes, such as inflated blood vessels and increased blood volume. These bodily changes can also contribute to the dizziness some women feel in the early stages of pregnancy.
Aches and Pains
If a pregnant woman's breasts became tender just a few weeks into the pregnancy, they are likely to remain painful during the ninth week. They may begin filling out if they have not already done so. Low back pain can begin between the ninth and 13th week of the pregnancy and last even beyond the delivery of the baby.
A pregnant woman's body begins preparing for the progression of a pregnancy by speeding the processing of urine. This change causes pregnant women to urinate more frequently, even early in the pregnancy. As the uterus grows and rests on the bladder, a pregnant woman will continue to urinate frequently throughout the day. Waking to urinate is common during the middle part of the first trimester.