Different Stages Of Baby Development During Pregnancy
The second trimester is weeks 13 to 27 and the third trimester starts about 28 weeks and lasts until birth. As the egg grows the lungs hear...
A typical pregnancy lasts 40 weeks from the first day of your last menstrual period (LMP) to the birth of the baby. It is divided into three stages, called trimesters: first trimester, second trimester, and third trimester. The fetus undergoes many changes throughout maturation