Every women experiences different changes involving pregnancy; it could be emotional or physical. However emotional changes and mood swings are quite common in most women. The most significant sign during expectancy is a missed menstrual cycle. The pregnancy symptoms start appearing within a week of conception; but it is always advised to consult a gynecologist during the initial stages. Many women sense nervousness, fear, delight, thrill or anticipation for childbirth. Expecting mothers must take care of themselves and avoid hazardous consumable items like alcohol and cigarettes as this has a direct effect on the unborn. These symptoms keep varying during different stages of pregnancy, so be alert.