Pregnancy

 

Why do I get pregnant?

If you have vaginal intercourse (sex), a male can release sperm (which males have instead of eggs) inside of you. If one of these sperm reaches the egg that has been released (which is called fertilization), the egg will implant itself in the thick, bloody lining of your uterus. The egg and lining won't break down if the egg is fertilized, and no menstrual flow will pass out of your body. You won't get your menstrual period if the egg is fertilized. Instead, the fertilized egg will grow inside of your uterus. The fertilized egg is called a "fetus" as it begins to develop some of the parts of a real baby. A woman is said to be pregnant when a fetus is growing inside of her uterus. It usually takes about 9 months to develop from an egg into a baby that is ready to be born.

 

 

Written by the Center for Young Women's Health Staff

 

Updated 5/12/2005

 

 

Related Information:

• A Guide to Puberty and Menstrual Cycles
• What Happens During Puberty
• Late or Early Breast Development
• Timing of My Menstrual Period
• Why I Get My Menstrual Period and What It Feels Like
• Feminine Protection
• PMS: Premenstrual Syndrome
• Menstrual Cramps
• Big Clots of Blood/Spotting of Blood
• Breast Health
• Choosing a Primary Health Care Provider
• Related Links

 

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