How Do I Know I Am Pregnant?
The first step to find out if you are pregnant is to take a pregnancy test. Pregnancy tests are designed to tell if your urine contains a hormone called human chorionic gonadotropin (hCG). This hormone is produced right after a fertilized egg attaches to the wall of a woman’s uterus. This usually occurs, but not always, about six days after fertilization. If you’re pregnant, levels of hCG continue to rise rapidly, doubling every two to three days.
When your urine is tested for the pregnancy hormone, the hCG level must be at least 20mlU/ml for the test to be positive. In pregnant women this hormone peaks about 8 weeks after the last menstrual period and then declines to a lower level throughout the pregnancy.