Second Trimester
![Pregnancy Stages](https://mybabyboyorgirl.com/wp-content/themes/baby/timthumb.php?src=http://mybabyboyorgirl.com/wp-content/uploads/2013/01/Ultrasonography.jpg&h=129&w=223&zc=1)
Normally, pregnancy lasts about 40 weeks (280 days) counting from the first day of your last menstrual period (LMP), which are grouped into three trimesters. The first trimester (week 1-week 12) During the first trimester the hormonal changes affect almost every organ system in the body and more often than not there are a number of symptoms clearly indicating the pregnancy. Thus, there will be no period, and women often experience extreme tiredness, tender, swollen breasts,