What about people whose brains don't fully develop? Are they not human? What about babies that are born only after six months and live perfectly fine? Are they only human because they are outside of the mother's body? What is so significant about being released from your mother's womb if you can possibly live on your own after a certain time? Does some magical spark come and poof your a human as your coming out of your mother??
The problem with a word like "human" is that it can have so many different meanings and connotations. That is why it is very important to remember what we are talking about here. The question is not when a fetus becomes "human", but when society has an interest in recognizing the existence of a new, independent person with civil rights of its own.
You might be interested in the history of abortion. The Catholic Church actually took a
fairly liberal view on the subject until about the 19th century. Before then, the question was over when "ensoulment" took place--the entering of the soul into the fetus. The prevailing view followed St. Augustine's argument that it didn't take place until "quickening" happened--roughly the beginning of the third trimester. Before that point, abortion was not considered "murder" by Church authorities.
So what about being outside the womb? Why is that important? That is when the child officially becomes a citizen with civil rights. It gets a name and a birth certificate. After that point, death requires a death certificate, never before birth. Should we require death certificates and names for miscarriages? That would hardly make sense.
Also, the point I was trying to prove was that you are not aborting a clump of cellsin most cases, since most abortions occur late in the first trimester - around the time the fetus is starting to look like that picture. And that is not a clump of cells unless I am blind.
Can you at least clarify one point? Do you consider abortions permissible early in the first trimester? If so, why? That would make your drawing relevant to the discussion, but it would make you vulnerable to the criticism that you define "personhood" on the basis of superficial appearances. If not, then we can dismiss the drawing as irrelevant to the defense of your argument.
Finally, I would like to applaud you for engaging in this discussion. This is a very complex and difficult subject to discuss, and you are doing the right thing in exposing your own opinions to attack, even if the criticisms seem a bit harsh at times. The more you engage in debates like this, the more you will sharpen your reasoning skills. I speak as someone considerably older than you, so I am pleased that you even bother to listen to my opinions.