I would describe someone terminating a pregnancy because it will interfere with school and/or work as being for "convenience". I don't judge them, that is not my place. I also won't sugarcoat what is happening. Both school and job opportunities will still be here after a pregnancy (they will also still be around if the mother decides to take some time off to raise the child, and will still be around for the father if the father decides to take some time off to raise the child).
You have a very naive view about how the majority of the world live. Losing a job or job opportunity is not an "inconvenience" for the vast majority of people. "Taking some time off" is simply not an option for billions of people. Many times there is no father or partner for support. An unwanted child can very quickly lead to loss of income, poverty, and homelessness.
Again, it's always peculiar that pro-lifers don't seem to care about the homeless mothers and children who are starving on our streets. Force the mother to have a child she knows she can't support, vote to cut aid and support for them, and then ignore them both when they are homeless and starving.