Tuesday, May 20, 2008

First Trimester

Congratulations on your pregnancy! A positive test can send you through a whirlwind of emotions, both positive and negative, even if its a planned pregnancy.

Pregnancy is measured in trimesters from the first day of your last menstrual period, totaling 40 weeks. So from the medical perspective even though you have been pregnant for two weeks, technically you are four weeks pregnant!

As the fertilized egg grows, a water-tight sac forms around it, gradually filling with fluid. This is called the amniotic sac.Placenta also develops which is a round, flat organ that transfers nutrients from the mother to the baby, and transfers wastes from the baby.

Its good if you've already been taking your prenatal vitamins, if not now is a great time to start.In this trimester every organ is already under development. Facial features, such as eyes and ears begin to form. Legs and arms sprout outward and your baby has hands,fingers,feet and toes!No wonder it is the most sensitive time period. Most miscarriages occur during this period.

Your baby can open and close its mouth and the reproductive organs also develop but its still very difficult to know baby's gender.The circulatory and urinary systems are working and the liver produces bile.

No wonder it is the most sensitive time period. Most miscarriages occur during this period.