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Prenatal and perinatal psychology are often discussed together to group the period during pregnancy, childbirth, and through the early stages of infancy. The role of prenatal and perinatal psychology is to explain the experience and behavior of the individual before birth , postnatal consequences, and the lasting effects on development that ...
In Ireland, under the Health (Regulation of Termination of Pregnancy) Act 2018, fetal viability is defined as "the point in a pregnancy at which, in the reasonable opinion of a medical practitioner, the foetus is capable of survival outside the uterus without extraordinary life-sustaining measures" [Definitions (Part 2)(8)]. [10]
A pregnancy is considered term at 37 weeks of gestation. It is preterm if less than 37 weeks and post-term at or beyond 42 weeks of gestation. The American College of Obstetricians and Gynecologists have recommended further division with early term 37 weeks up to 39 weeks, full term 39 weeks up to 41 weeks, and late term 41 weeks up to 42 weeks ...
One of the pathways that has been studied is the inheritance of disrupted heterochromatin. Heterochromatin is important in many functions of the cell mostly in gene regulation. During high levels of stress during pregnancy dATF-2, which is required for formation of heterochromatin, will phosphorylate and disrupt the formation.
The definition of teenage pregnancy includes those who are legally considered adults in their country. [2] The World Health Organization defines adolescence as the period between the ages of 10 and 19 years. [6] Pregnancy can occur with sexual intercourse after the start of ovulation, which can happen before the first menstrual period (menarche ...
[2] [3] [13] For a healthy pregnancy, medical induction of labor or cesarean section are not recommended before 39 weeks unless required for other medical reasons. [2] There may be certain medical reasons for early delivery such as preeclampsia. [14] Preterm birth may be prevented in those at risk if the hormone progesterone is taken during ...
A protein called early pregnancy factor (EPF) is detectable in a woman's blood within 48 hours of ovulation if fertilization has occurred. However, testing for EPF is time-consuming and expensive; most early pregnancy tests detect human chorionic gonadotropin (hCG), a hormone that is not secreted until after implantation. Defining pregnancy as ...
Different terms are used to describe prenatal development, meaning development before birth. A term with the same meaning is the "antepartum" (from Latin ante "before" and parere "to give birth") Sometimes "antepartum" is however used to denote the period between the 24th/26th week of gestational age until birth, for example in antepartum ...