Early Pregnancy Calculator helps you decide when to take the pregnancy test at home. This provides you to keep "the good news" to yourself only. Any female who thinks she might be expecting would like to know it right away. But before that, she needs to have a clue about what is going on within her. The fertilization of the egg takes place as soon as the sperm and the ovum unite. This zygote cell (or fertilized egg) now travels to the uterus and the implantation of this egg in the uterine wall is completed. It is at this particular stage, the urine starts showing minute amounts of hCG (the pregnancy hormone). The presence of hCG in the urine is what determines the pregnancy.
The home pregnancy tests play an important role in this regard. They help you know if you are pregnant or not, from the comfort of your home. Some other tests are so reliable that they can be used as up to five days before the expected period. Isn't it amazing?