Though Quran does not say explicitly about abortion but 17:31 warns:
“Do not kill your children for fear of POVERTY. We provide for them as well as for you. Surely, killing them is a great blunder.”
The verse forbids pre-Islamic practices of killing newborn child due to parents' poverty or a female child more as liability than future asset. Perhaps in those days people did not know contraceptive, pills or other birth control measures including sex awareness. Sex was sole means of entertainment than TV channels, internet or Disney Land.
But abortion may also have its reasons other than poverty as above, like social fear, protecting family disgrace, even parent physical inability to rear child, etc. Perhaps allows theologians to have varying viewpoints. Some permit abortion up to day 40 of pregnancy or even up to day 120. Conservatives like in Pakistan however favor protecting the unborn child and do not favor any state population control or the slogan 'We two and ours two'.
Many Muslim countries allow abortion conditionally if mother life is in danger. But Turkey and Tunisia allow it unconditionally.
Regardless, abortion will always be an issue of conscience and life tragedy.