I am telling you that every single part of the conceptualized fetus form its very begining is completely human and completely alive. There will be nothing more added to it. That you were likewise complete at the very beginning stages of your life; from zygote to adult.
Yes, the acorn has the complete dna of a tree and if planted will develope. Unlike the acorn however, the baby is already planted in the womb and has begun its developement.
The acorn is also, by it's very nature, oak. Just as an embryo is, but it's very nature, human. From conception till death, and everything in between, it is human life. Different stages to but sure, but human life just the same.
Those who are pro-choice see different stages of human development as 'more human' and 'less human' and embryo/early fetus falls into their 'less human' category. This is their reasoning that, in their mind, makes it ok to rip apart and destroy this human because after all, it's not fully developed yet. They conveniently disregard the fact that it is and always will be
human life.
Those who are pro-life see the embryo/early fetus as fully human, regardless of what stage this life is in, and therefore believe that the unborn have the same rights as a born human.
Neither side will ever convince the other they are right and abortion will always be an issue divided.