So what happens during the first prenatal trimester? For the duration of the first two weeks of the first trimester, you may not feelanything other than symptoms of morning sickness. In this part, you are not yet pregnant since it takes two weeks after the menstrual cycle. The cycle will be counted even if you had been not pregnant at that time. Now, on the third week, the fertilization begins. The sperm and egg are meeting at the fallopian tube and they type of the zygote already or a fertilized egg. The zygote, from the fallopian tube will head to the uterus. While on its way, it will start dividing into clusters, forming a raspberry type of construction. By the 4th week, the implantation begins. The zygote gets to be the blastocyst and it will burrow on the uterine lining and will start to get some nourishment. This is also the time where the placenta will build. On the 5th week, the blastocyst will enter an embryonic stage. This is a critical part where the brain, spine and heart, as properly as other organs start building. As you can see, the first component of the pregnancy trimesters is incredibly crucial and sensitive. The lady will start feeling some changes as the 6th week begins.

For the duration of this stage, the growth of the embryo accelerates and the neural tube starts to close. At the begin of the pregnancy, you ought to have been taking vitamins currently and eating healthily and taking it easy. Folate is necessary to stop any neural tube defects. By the 7th week, the head develops already. You will see that there are some tiny nostrils, a bit of a confront and the arms are taking form a bit. By week 8th, the initial symptoms of movement happen but it is still not that significant. The fingers begin developing and the baby is as tiny as half an inch lengthy. By the 9th week, the toes of the child will start building. By the 10th week the neck will develop. The 11th week will see the development of the genitals of the child. From an embryo, it will now be called a fetus. The 11th week is also a massive change in size to two inches in length. The final part of this stage is the development of the fingernails at the 12th week.

As you can see, the growth of the child is most crucial in this component so at this point, you should have been going to the physician, eating healthily and taking it easy. This is also the part where you get early morning sickness since the estrogen levels are elevated due to the alterations in your body. Nonetheless, it is just one phase of the pregnancy trimesters and as you progress, there are other alterations that will happen, but much more physical.