Pregnant or not, if you been trying for pregnancy, you may or may not experience some of this signs or symptoms. Not all women will experience all of this symptoms or may have have vary symptoms of varying degree. But if you have some of them you must see them as an indication that your body is only responding t a great and important change. It is very important that you start on prenatal cares as soon as possible, and that only becomes possible by detecting your pregnancy in a early stage. If you have a slight chance of being pregnant be aware to the signs, they can help you confirm your doubts. Here you have some of the common signs / symptoms of the pregnancy that occurs in the first trimester:

Slight bleeding or brownish vaginal discharge
It normally occurs two weeks after the conception and it's caused by the implementation of the fertilized egg in the uterus. When the fertilized egg set into the linr of the blood vessels in the uterus (by breaking them) and leading to a bit of bleeding with some possible clamping similar to menstrual cramps you may think that it is your normal period. But if you notice the color of the blood is light pink to brown most of the time, witch looks different from your regular period. You may also notice that this bleeding is a little bit earlier then your usual menstrual periods.

Missed period
This symptom is regarded as an early sign of pregnancy but if you have an irregular period you may not notice that they are late. And you must remember that may be other reasons to a missed period like a sudden gain or loss of weight or giving up your birth control pill. So, a missed period is only a sign of an early pregnancy when confirmed with the proper tests to attest it.

Sensitive and swollen breasts
During pregnancy many women feel certain changes that occur to the breasts. Usually this changes are felt two weeks after the conception and the reason that occurs is due to hormonal changes. Your breast may feel more sensitive or sore, heavier and fuller. The growth of the milk-producing lobules and the ducts that carry on the milk to the nipple can cause some of the symptoms referred.

Darkening of the aureole
The darkening of this area surrounding the nipple is due to the hormonal changes and the body's preparations for breastfeeding. In some cases you may also experience a darkness line that extends from the navel to the pubic hairline and that is known as the "linea negra" as is also caused by the hormonal increases.

Nausea (with or without vomiting)
This is considered one of the classic symptoms of pregnancy. The so called "morning sickness" can occur any time of the day and is thought to be caused by the increase of the hormone produced in the placenta and known as hCG. This symptom usually starts to increase at about six weeks, when the level of hCG rises up. You may feel adverse to some smells and that your stomach to empty more slowly, what causes you sickness and nausea. If you have not the right track of your menstrual cycle, nausea may be your first clue.

Frequent urination
The reason this happens is because your uterus is beginning to grow and applies pressure to the urinary bladder. And you also have to count that your body needs a great amount of blood and fluids to nurture the fetus. The kidney has to process more fluids and consequently produces more urine.

Constipation
Women feel constipated in the earlier months of pregnancy due to the rise of progesterone that slows down the food passage trough intestines and causes constipation. you can minimize or prevent this symptom with regular exercise and the increase of fiber in your diet and your fluid intake.

Headaches
The hormonal changes occurring in your body both with the increase of blood circulation may cause mild headaches. Don't worrie, this symptom is more frequent during the early pregnancy and it has the tendency to reduce as the pregnancy develops.

Bloating of the abdomen
It is not a common symptom to every women, but it may occur during the early pregnancy also and it is often mistaked by PMS. But if you're missing your period and you're bloating then there is a good chance that you're pregnant. Monitoring your basal temperature is important. You should do it after you wake up in the morning and if you notice a substantial increase may be a sign that you're pregnant.

Mood swings
The normal changes happening in your body have as a result frequent mood swings. This symptom will also occur in the early pregnancy and can experience a certain emotional jumpiness. You can feel happy or even jubilant to the next moment feel low and irritated.

Craving or aversion to food
During pregnancy you will experience a strong craving for some foods. You may feel a strong urge at any time of the day for some food. In other side, you may also develop an aversion for some foods that you liked before. This symptom is also attributed to hormonal changes.

Fatigue and sleepiness
The increasing of the levels of the progesterone hormone have as a result the increase of tiredness and sleepiness. But there are other causes to this symptom like the lowering of the blood pressure, the increase of the blood production and the lower blood sugar levels during this early stage. You'll need extra sleeping and small meals. And the good news is that sleepiness will decline after the first trimester.

Faintness and dizziness
Great changes, will occur in your body during pregnancy so you can meet the increased metabolic needs of the baby. One of the most significant changes occur within the vascular system. The amount of blood that circulates in your body increases so your circulatory system can supply your baby with the nutrients need for the growth. Your heart beats faster to pump more blood throughout your body. In the early weeks the blood pressure gradually decreases. The low blood pressure can cause dizziness or lighthead. You must avoid getting up too quickly from a lying or sitting position. This symptoms are normal and you must not worry too much.