If you are pregnant — or thinking about getting pregnant — you likely have some questions about the various stages of a pregnancy. In this blog post, we will provide you with some basic and general information about the pregnancy stages.
Generally speaking, medical experts divide a pregnancy term into three pregnancy stages, aptly named the first, second and third trimesters. Each trimester lasts for a trio of months, more or less.
During the initial third or trimester of the pregnancy stages a woman will notice only minimal changes in her outward physical appearance in most instances. The unborn child at this juncture is known as an embryo and is extremely small. With that said, a woman will begin taking on some additional weight during the first trimester of the pregnancy stages.
The second trimester is when the greatest degree of change occurs in regard to the unborn child. Indeed, it is during this portion of the pregnancy stages that an unborn child truly develops physically into a “little human.” It is also during this period that a woman will experience the most significant physical changes that will occur during the course and term of the pregnancy itself.
The final or third trimester of the pregnancy stages is one in which the child, already fully differentiated, grows and takes on weight. During this period, the unborn child, the fetus, goes through the process of the commencement of organ functioning.
Due to the changes in technology in this day and age, in most instances, a child born at any time during the third trimester — but before the ultimate due date — has a very strong chance of survival. (Of course, there are exceptions if the child has a serious disease or illness or if the mother has such a disease or illness that is the cause of the premature birth. Additionally, there are significant variations in survival rates from one country to the next depending on the technology that actually is available in a given nation.)
By understanding the pregnancy stages, you will have a better idea of what is going on during the course and term of a pregnancy. A person armed with this knowledge and information about the pregnancy stages will be better able to appreciate and comprehend the changes that are going on in her own body and the changes that are occurring in regard to her unborn child.
译文:
怀孕有哪些阶段
如果你已经怀孕--或正准备怀孕--你可能会对怀孕的各个阶段抱有疑问。在本文中，我们将告诉你一些关于
怀孕阶段的大致的基本的知识。
医学专家一般把孕期分为三个阶段，称之为第一，第二和第三阶段，每个阶段持续三个月左右。
在怀孕的第一阶段，大多数情况下女性只会注意到身形上发生了很细微的变化。此时未出生的孩子只是一个胚胎，形状很小。随后，女性在怀孕的第一阶段中体重会有一些增加。
第二阶段中，胎儿的变化是最大的。的确，就是在这个怀孕阶段中，孩子在身体方面真正发展成一个“小小的人类”。也是在这个阶段，女性会经历整个怀孕过程中最大的体型变化。
第三阶段或者说最后一个阶段中，孩子已经可以完全被识别出了，它会在这个阶段中成长，体重也会增加。在这个阶段中，胎儿的器官功能也将开始运作。
由于当今技术的发展，很多情况下孩子可以在第三阶段中的任何时间里出生--在最终出生之日前--孩子的存活率是很高的。（当然，也有例外，如果孩子患有严重的疾病或母亲有严重的疾病，可能会导致孩子的早产。另外，胎儿的存活率还会因为各个国家的技术高低而不同。）
在了解了怀孕阶段的知识之后，你就更清楚怀孕过程中每个阶段正发生着什么。一旦你掌握了这些知识，那么对于你身体上的变化以及宝宝正发生的变化，你将更为重视，更加理解。