Think about the fact that anything has potential for life.. like when your conceived you beat out millions of other potentially different people for that spot in life. How is that any less fair..
Or mothers in nature who sometimes eat there babies.. especially weak ones because it means being able to give produce more life down the track. 
Or that reality is a horrible existential nightmare.. in situations where that child is guaranteed to have a crap start and shitty life is aborting them not a form of mercy sparing them from a life of pain.
Civilized society vs intelligent society. Objectively a fetus is a just a non living thing.. and until becomes living thing does not have any value. Civilized really means nothing.
Perspective – 200 years ago.. your kid died.. oh well par for the course.. you didn;t get attached… but the fact so many of us survive these days makes us very bias compared to what is more normal to our circumstances over human history.
Just my thoughts on it. Personally I don’t think any of what I just said matters. A pregnant woman is 100% responsible for their own body and what they grow until it comes out… and saying otherwise is really against the laws of nature… and your an asshole if you try to dictate or manipulate what other people do with their body.