One of the earliest 'possible' signs of pregnancy is a Missed Period. This is usually the point when women start to really consider that they are expecting. Of course, for some women who have irregular cycles, they may pay less attention to this event and wait for other symptoms to indicate that they are in the family way. You may also experience an unusual or a lighter period during the first month of pregnancy.

Another common symptom is that of fatigue and energy changes. You might feel that you are less energetic that you usually are. You may find yourself going to bed earlier and also discover that getting up in the mornings is more difficult than before. If you are experiencing this symptom, it would greatly help if you were to take 15 minute naps every few hours or so. You may also experience dizziness and fainting even just standing up for a prolonged period of time or in doing exercises.

Nausea and Vomiting also often referred to as "Morning Sickness" hits a number of women. It is important to remember that not all women experience this symptom. For some, it is isolated to the first trimester and others experience it throughout the duration of the gestational period. These symptoms are often caused by hormonal changes as well as your body’s response to the growing uterus.

Soreness and Enlargement of breasts and frequent urination are also common signs of pregnancy. The changes in the breasts are caused by your body’s attempt to prepare the breast tissue for lactation as soon as the baby arrives. Frequent urination is also a symptom and is brought about by the pressure of the growing uterus on the bladder - this symptom often lasts throughout all three trimesters and gets evident in the last few months.