Pregnancy typically lasts about nine months, or 40 weeks, and is divided into trimesters. The first trimester is from week one until week 12. The second trimester is between weeks 13 and 26, and the third largest trimester is from week 27 until delivery If you become pregnant, your womb doesn’t molted its lining as it normally does at the end of the menstrual cycle, so your periods temporarily stop. This is because the egg, which has been liberated from one of the ovaries, has been fertilized by a semen and you are in the early weeks of maternity. Here we demo the ovaries, the Fallopian tubes, the womb and the vagina. The fertilized egg has already started to divide in the Fallopian tubing. It will continue to develop and proliferate in the womb and is called an embryo at this stage.
Week nine the embryo has developed and is called a fetus. At this item most of the organs, including the nervous system and middle are forming. Here we demo the fetus in the womb. By the time “you think youre” 12 weeks pregnant, your baby is approximately 6cm( two and a half inches) long. At this stage, your baby’s cervix is uncurling and the limbs are accomplish. The eyelids are still fused and the ears are structuring. Here we demo the baby, the umbilical cord, the placenta and the amniotic fluid. The umbilical cord connects the baby to the placenta. This is how your baby gets nutrients and how consume( such as urine) is removed.
In the second trimester, your baby’s sex organs develop and other organs evolve. The baby withdraws amniotic fluid and guides it out through its digestive system. The kidneys start to work and pass small amounts of urine. Your baby been in a position to sound, and is covered in fine “hairs-breadth” called lanugo. You may first appear the baby move in the second trimester of maternity. The actions become much more vigorous and obvious as the baby gets bigger and stronger. Braxton Hicks( rehearsal reductions) are painless tightenings of the womb that are able to start from around 20 weeks of maternity. Your baby’s lungs evolve throughout the third trimester. The baby clears living actions, although there are the lungs don’t work properly until delivery. The baby germinates fine “hairs-breadth” and fingernails, the eyes open and close, and teeth may start proliferating for the purposes of the gums. Your baby’s fat supermarkets also increase in preparation for birth.
Braxton Hicks reductions become stronger in the third largest trimester. At the end of your maternity your baby changes outlook so it is ready for delivery. The baby’s top may not hire, that is, move into the position in the pelvis for delivery, until labour .
As found on Youtube