The first trimester looks different for every woman with her own baseline health status and unique circumstances.
Although pregnant women feel changes and shifts internally, there may not be too many physical changes in the first trimester. The first trimester is an important time for women to manage symptoms of morning sickness, avoid any potential hazards and try to maintain as healthy a lifestyle as possible.
The first trimester of pregnancy is the most critical time for the development of the baby. Approximately one week after conception, the fertilized egg attaches to the mother's uterus and a placenta begins to form. The baby begins as an 'embryo', and is then referred to as a 'fetus' after 8 weeks of pregnancy.
Within these first 12 weeks, all the baby's organs will develop and begin to function. The baby will weigh
approximately 0.2 lbs and will be approximately 10 cm long, about the size of a lime.