There's no hair-splitting here at all. It makes no difference what you call it, its all the same thing. No, it's not. Again, you can't brush aside precise terminology just to attempt to lump everything together into one nice, tidy, convenient category. You might choose to call it that just to further obfuscate your own arguments.
Selective vocabularies change nothing in reality.
You might want to check out my essay on that subject, as well. Therefore, your argument has several problems of basic logic. I doubt that you will want to assert that the mother would consider a child which was conceived by rape and a child which was conceived with her chosen life partner to be no different in any way. Yet, that is what you are saying with your strictly biological connotation and ignorance of circumstances. Therefore, you are always going to be faced with the problem of unwanted pregnancies.