Before there is an embryo, there are gametes of the man and woman. The first cell division following conception is the proof that a new individual human life (if the gametes are human sex cells) is expressing his or her self direction and this is an individual at earliest embryo age, not a fertilized egg. The term 'pre-embryo' was created to confuse issues, to try and create an ambiguity regarding the newly expressing human individual, to allow the manipulators of these very young human beings to exploit their LIFE for experimentation and profit. Please stop using that false term when referring to human embryos, human concepti.
Hey, I agree with you that human life begins at conception. The only reason I didn't use the correct scientific term was because I forgot what it was at the very earliest stage. I'm pro-life, I was just asking about IVF, because what the original poster was saying didn't sound right to me... but like I said, I'm not an expert on this particular issue.