So riddle me this, pale. What of eggs which are fertilized outside the body, you know, in a petri dish? Are these also human? Is it wrong to toss these dishes aside? Is a human life created when some PhD squeezes a syringe of semen into a dish containing an egg? You are asserting that this is the case. I call shenanigans.
On this same note, there has been elsewhere, discussion of clones. It is said that human life in this case "could" conceivably be created without conception/egg & sperm. While this is theoretical (and well debated) it is a viable question. Since clones form from implanted dna, and form in a very similar manner as eggs do, at which point would they be considered human? Is it as cell division begins? Is it at the point that it begins "communication" (in your case, hormone communique)? What if this is purely outside the womb and the formation was directed towards only the growth of an organ? is this a human still at the low stage of cellular development before one directs the growth?
While I know this is all hypothetical and somewhat on the fantastical, at some point this may become reality and is very relevant.
Lastly, the supposition that the ability to communicate makes the cells human is not a validation of the argument. Communication is by no means a directly human trait. And I imagine you're trying to equate autonomous communication with life. This also is not exactly a valid argument, as I can show you plenty of examples of software that is autonomous and communicative. Of course I digress. I simply cannot find any justification for stating that the cellular conception of an egg is A human life.
I know much of what I asked here is a bit abstract and far reaching, but so is your suppositions.
