Typically, many of the unpleasant side effects of early pregnancy will have subsided or lessened by this point. The worst of your morning sickness will likely be over, and you may experience an increase in energy. Some women start to develop leg cramps or sleep problems, and your growing abdomen may make some physical activities more difficult. 

Preterm Labor Warning Signs 

Regular uterine contractions that are changing the cervix and occur before 37 weeks gestation are considered preterm labor. If you are having frequent contractions that are increasing in strength and are 5 minutes apart or less, please go directly to Labor and Delivery at the hospital to be monitored and evaluated. If it is preterm labor, there are medications and measures that can be taken to prolong a delivery so that your baby can develop in the womb for as long as possible.