Fourth, it makes little moral sense to me if it is okay to have an abortion for reason X (you pick the reason) in the 1st or 2nd tirmestsemester, then why is it not okay in the 3rd trimester.
What reasons do you imagine that almost 90% of women have for not wanting it in the third trimester? Do they just not know what's right for them or how to form sensible opinions?
Most women who obtain abortions do so early in the pregnancy. Most later abortions are because of health issues for either the mother or the fetus or because they did not know earlier that they were pregnant or were unable to access an abortion until later.
Sometimes fetal abnormalities are not discovered until the second or third trimester. Most spontaneous abortions occur during he first trimester because of fetal abnormalities, sometimes before a pregnancy is confirmed or even suspected.
So generally, the reason for the abortion over time across the population of women who seek abortion changes, not because of individual desire to continue the pregnancy but because of significant changes in the health of the mother or fetus. And less frequently, because of difficulty in gaining access to abortion.
If we, as a society, wish to reduce the number of abortions, we need to make some structural changes in our society to better support pregnant women, new parents and pare ts in general and children, including access to good nutrition, good medical care, safe and stable housing, good accessible day care and good education.
By good, I mean excellent.