Well played. However, I did not choose the women's reasons for terminating their pregnancy for them. They chose the reason in the survey. The fact that the vast majority of the reasons do not seem compelling from the benefit of outside perspective does not minimize the weight of the decision. You cannot simultaneously claim the decision is weighty and then defend an abortion based upon the mother "would have to find a new place to live." Of course, the "spreadsheet" was chosen to simply display the reasons that the women gave in the easiest-to-read fashion. Moving anecdotes would be dismissed for the opposite reason, I'm sure.
Those I know who have had abortions, many for the reason you've described above -- nevertheless were touched forever by the event, and would never do it again. If anything, in their cases, it made them far more responsible with their sexuality.
I'm not sure that this point is a strong support for your argument. The fact that the women would never do it again does not seem to me to be good support. And if the option was not available for "convenience", would it have made them far more responsible with their sexuality in the pre- rather than the post- ?