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In Vitro Fertilization (IVF) which means ?fertilization in a glass? is often more commonly referred to as a test tube baby. The woman?s eggs are taken from her ovaries and then in a laboratory dish, fertilized with sperm before being inserted into her womb. Women who use In Vitro Fertilization are often recommended this method when others have failed or because they are older.

Methods of IVF will invariably differ a little from clinic to clinic but should proceed along these lines. Initially your physician will give you hormone blocking drugs normally produced during your menstrual period. The reason for this is so the physician has improved control over when your eggs are produced. You then take different drugs to make your ovaries produce more than one egg.

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To monitor your developing eggs, vaginal ultrasound scans are taken as well as blood tests to ensure that the eggs are increasing the estrogen level. Once the time is right, another hormone will be injected to help the eggs mature. This injection is given 34 to 38 hours before the eggs will be collected to the timing of this is very important. To collect the eggs, ultrasound guidance is used and as it takes about half an hour, either drugs or a general anesthetic is given which may make you feel drowsy.

It is now the male?s job to ensure that a fresh sperm sample is ready. After a short storage period the sperm are washed and spun at high speed to enable the most active and healthiest to be chosen. Donated sperm is kept in the freezer but the same method to prepare it is used. After the eggs and sperm have been collected they are left to mix in a laboratory dish for between 16 and 20 hours and then inspected to see whether fertilization has taken place. Any that haven?t, or any that have fertilized abnormally, are discarded and the remaining embryos are then left for another 24-48 hours before being checked again.

Once your eggs have been collected there is a waiting period of two days, then you are given pessaries, an injection or gel to ready the lining of your womb.

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