Postnatal depression is very common to mothers who just gave birth. I remember when I gave birth to my first child, I immediately became depressed right after. I could not truly understand why I felt that way. I keep on asking myself why I feel depressed when I just had a baby. Shouldn't I be jumping with joy? But, there is nothing wrong with experiencing postnatal depression because you are allowed to be sad about what your body and mind went through during nine stressful months of pregnancy.