Physicians, Petri dishes, and Pregnancy

In response to the articles "Contraception Deception" and "Medical Dictionaries Prove Plan B Advocates Wrong", many readers (including physicians) defended the position that fertilization isn't the start of pregnancy. More often than not, they responding with one or more of the following arguments:

1. The definitions used by physicians are different than the ones used by nurses and other medical professionals.
2. An embryo must be implanted in the uterus for a woman to be pregnant.
3. Petri dishes can't be pregnant; therefore a woman isn't pregnant at fertilization.
4. Pregnancy begins at implantation due to the fact that is the earliest point it can be detected.

View the rest of the article at http://www.noroomforcontraception.com/pregnancy/Physicians-Pregnancy-Petri-Dish.htm