It is called pregnancy, pregnancy or pregnancy the period between implantation in the uterus of the fertilized egg and the time of delivery.
In humans, pregnancies lasts on average 40 weeks (approximately 9 months).
Pregnancy occurs when a sperm reaches and crosses the cell membrane of the egg in a process called fertilization.
According to its development, pregnancy is typically divided into three stages of three months each:
-In the first trimester the risk of abortion is higher (natural death of embryo orfetus).
-In the second quarter the developing fetus can begin to be monitored ordiagnosed.
'The third quarter marks the beginning of viability means that the fetus couldsurvive the occurrence of a premature birth, normal delivery or cesarean section.
The calculations to determine the probable date of delivery is done using the date of the last menstrual period, we add seven days and three months is subtracted, giving the due date or correlations that estimate gestational age using ultrasound.
Clinical trials of blood and urine to detect pregnancy from 6 to 10 days after conception.
Presumptive signs of pregnancy
The first sign of pregnancy is presumptive amenorrhea or absence of menstrualperiod, followed by hypersensitivity of the nipples, dizziness, vomiting, morning, drowsiness, impaired perception of odors, and cravings for certain foods(cravings), fatigue characterized by fatigue, weakness and drowsiness.
The fetal heartbeat is fast, between 120 and 160 beats per minute, and can be precisely identified from week 19 and 20
Various factors increase the likelihood that a woman has a pregnancy risk:

• History of preeclampsia or eclampsia.
• Regular use of alcohol and snuff after the first weeks of pregnancy.
• Age less than 14 years or older than 35 years.
• Multiple pregnancies.
• Past illnesses or during pregnancy, anemia, alcoholism, various heart diseases, diabetes, hypertension, obesity, various infectious diseases, kidney disorders or mental disorders.
• Bleeding during the second half of pregnancy in previous pregnancy.
• Previous children with a malformation.
• Interval between pregnancies of less than 2 years.
• Body weight below 45 kg or greater than 90 kg (Varies according to size)
• Problems in a previous pregnancy.
• Size less than 140 cm.

Very few pregnancies are planned or desired by adolescents. The girl ispregnant teenager more likely to suffer toxemia of pregnancy and cephalopelvic disproportion when the bones of the pelvis are not fully developed and is more likely to have a baby with low birth weight.
Of the complications that occur during pregnancy are:

• Anemia, which is due to blood loss during menstruation, and is an iron-deficiency anemia.
• Bleeding before 24 weeks, which can lead to abortion.
• Abruptio placenta
• Placenta previa when the placenta is attached to the bottom wall of the uterus.
• Gestational diabetes, a type of diabetes that develops only during pregnancyand usually disappears shortly after birth.
• Ectopic pregnancy that develops outside the uterus, usually in a fallopian tube,
• Preeclampsia or gestational hypertension, is the development of hypertensionabove 140/90 mmHg after 20 weeks of pregnancy.

DELIVERY
The Humanist Party, also called birth is the culmination of human pregnancy, the period of baby's exit from the womb.
The natural process of human childbirth is done in three phases:
The first is the effacement and dilation of the cervix, in the case of gilts may take up to 18 hours, the stage ends at the completion of an expansion of 10 centimeters.
The second is the descent of the baby through the vagina and the birth of this
The third is the expulsion of the placenta, cord and membranes, this is calledbirth and takes 5 to 30 minutes.

Among the benefits of having a natural birth is:

• Babies born per litter more accepting of breastfeeding and less likely to have asthma
• Shorter hospital stay.
• Faster postpartum recovery, almost immediately she can join his normal life
• Very low risk in case of subsequent pregnancy in a short time
• Avoid the risk of major surgery.
• It's hard to improve what nature gave natural birth and that's the natural way of having children.

PUERPERIUM
The postpartum (colloquially quarantine) is the period immediately after deliveryand extends the time (usually 6-8 weeks) or 40 days for the mother's bodyrecovered.
The main focus of care during the postpartum period is to ensure that the mother is healthy and able to care for her newborn, equipped with the information required for breastfeeding, reproductive health, family planning and related adjustments to your life .
Abdominal delivery are performed surgically through an abdominal operationcalled cesáreacuyas indications include the following:

• Serious medical reasons that endanger the life of the baby, mother or both
• Previous cesarean interval less than 1 year
• When the baby is sitting, it is not correct position for birth
• Mother has high blood pressure
• Failure to progress in labor
• Twins or multiple

What is best for you?

This is a personal choice in most cases. If medical necessity is not to say but otherwise keep in consideration all the above and also lean and consultation with your friends, your relatives and read the forums on the Internet. Find outbefore making a decision.