Trimester of Pregnancy

"Pregnancy is a long, 10-month journey,"

 Dr. Draion Burch

An obstetrician and gynecologist at Magee-Womens Hospital at the University of Pittsburgh Medical Center.

Human gestation divided into THREE trimester:

•First Trimester (1st)

•Second Trimester (2nd)

•Third Trimester (3rd)

*1 trimester = 3 month

First Trimester

The first trimester is the main period of organogenesis, development of the body organs.All the major structures are present by 8 weeks.The embryo is called a fetus

During its first 2 to 4 weeks, the embryo obtains nutrients directly from the endometrium. Meanwhile, the outer layer of the blastocyst, called the trophoblast, mingles with the endometriumand eventually forms the placenta. Blood from the embryo travels to the placenta through arteries of the umbilical cord and returns via the umbilical vein.

4 week

                                                          

7 week

                                                                           

8 week

9-12 week

                                                                           

Change in the mother

There are change to the mother whether physical or mental during pregnancy.

Week	Change occur in the mother
2-4	Morning sickness,more tired than usual,increases sleepiness
5-8	Breast enlargement, nausea is also very common,growth of the placenta
9-12	Heart will be working even harder,increasing the volume of blood it pumps,mood swings,forgetfulness to fear,anxiety and excitement