I think convenience should never become a factor when determining to abort a child. Sure, the pregnency might make life difficult for the woman, but that's for 9 months(the pregnency). If she feels that she won't be able to raise them due to certain circumstances, there is always the option of putting them up for adoption. It may be hard, but it's better than having to kill.
It's discusting that to save some trouble and inconvenience, people are willing to take away a life of one who is completly helpless.
Another thing that disturbs me about abortion is no one knows who the child aborted may grow up to be. Possibly an Olympic athlete, a great scientist, a future president? If you looked at the circumstances of Beetoven's birth, many today might say it would be best to abort his birth due to the high possiblility of him having a hard life. But look at what he has contributed to humanity. To think all that might not have existed today if abortion was possible and as available during his times.