The majority of abortions that happen occur before the foetus is viable outside of the womb. Late term abortions occur due to severe health risk to the mom, baby, or both. If the baby was viable outside the womb, the doctor would be forcing labour, rather than performing an abortion. Not only that, but given how abortions work, if you try and save the foetus, he or she will likely have several complications. It is extremely unlikely that s/he will survive beyond very young childhood.