Calculation of the expiration date:
The first thing a couple expects to know is the due date. A normal pregnancy lasts 9 months or 40 weeks in the medical language. It is usually divided into three quarters, each of 3 months duration. The expiration date is calculated from the beginning of the first day of the last menstrual cycle. You will be surprised to know that a woman is considered to be really pregnant in the two weeks prior to the current conception.
Week 1 and 2 of your first month:
In the first week, you are not pregnant. The egg leaves the ovary and travels to the fallopian tube. One it has reached the fallopian tubes, it waits for 24 hours for a sperm from your partner to fertilize it. If fertilization does not occur, it breaks down and you get your periods after 14 days. This is how the menstrual cycle occurs.
In case the egg is fertilized, it then travels down the fallopian tube into the uterus. This does not happen in an instant. It can take 1 to 2 days. Once the fertilized uterus, it implants itself onto the wall of the uterus. This implantation can cause spotting in some women.


In the first and second week physical changes in the mother are not visible. But a number of internal changes take place as the body prepares itself for a new body and new life inside. A number of internal changes are taking place which you may not be able to explain. Mood swings are experienced, the woman feels tired and fatigued and feels nauseous. Gas and constipation are also common. Her breasts may become tender and she may feel the urge to urinate very frequently. These are a result of the hormonal changes that her body is undergoing.


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