In principle, there may be a variety of such reasons that we might recognise as requiring us to restrain the purely selfish pursuit of our own interests. However, it is not clear what reason could apply in this case. Even if we speak of a fetus, or another potential person, as having an interest in becoming a person, exactly what harm does it suffer if the interest is not met?I elaborate about why it is a good thing that we a general pro-baby attitude - but why this at least does not extend to early embryos here, but the main article is behind a wall and you'll need some kind of subscription to the Journal of Medical Ethics to read more than the abstract.
It cannot experience any frustration of its desires, because it has no desires. The mere failure to meet this interest does not inflict any pain. It does not experience fear, so the wrongfulness of our action cannot consist in inflicting upon a entity something that it fears. Nor has it begun a life whose coherence or value may be ruined by being cut short. We do not reveal ourselves as cruel if we terminate the development of a merely potential person painlessly, or with minimal pain. It is difficult, in short, to see why the interest is one that must command our respect. It seems to be a totally theoretical interest. It might unkindly be called a contrived one.
You might like to see what Kenan Malik has to say on the topic here.