I overstated that, I shouldn’t have said no problem.
Most thought that there was a problem with it, but that early abortion didn’t amount to homicide. It was a lesser sin, and usually some penance was assigned.
If an abortion was done in order to conceal an illicit relationship, that made it a more serious sin because the illicit relationship was a more serious sin.
There was also the argument that even if the fetus didn’t yet have a soul, you were destroying the possibility of creating a human being, and that was still some degree of sin.
St. Jerome wrote to a female correspondent, Algasia, that “seeds are gradually formed in the uterus, and it is not reputed homicide until the scattered elements receive their appearance and members.”
Augustine wrote, “Because the great question about the soul is not to be hastily decided by unargued and rash judgment, the law does not provide that the act pertains to homicide, for there cannot yet be said to be a live soul in a body that lacks sensation when it is not formed in flesh and so not yet endowed with sense.”
But then there was also the question of when exactly the soul entered the fetus – and if there was uncertainty about that, it was better to be on the safe side.
The other issue was that women sometimes died from taking abortion drugs, so it was dangerous and potentially harmful for the mother, even in early pregnancy.
From Abortion and the Catholic Church: A Summary History by John T. Noonan Jr. :
By 450 the teaching on abortion East and West had been set out for four centuries with clarity and substantial consistency. There was a distinction accepted as to the unformed embryo, some consequent variation in the analysis of the sin, and local differences in the penance necessary to expiate it.
The sin itself was often associated with lechery, sometimes with marriage. The usual method of accomplishing it was by drugs, sometimes associated with magic, sometimes with danger to the user. The motive animating it was seen variously as shame, as avarice, as lust. Although therapeutic and social reasons for abortion were known from the best of doctors and philosophers, these reasons were never mentioned as justification.
All the writers agreed that abortion was a violation of the love owed to one’s neighbor. Some saw it as a special failure of maternal love. Many saw it also as a failure to have reverence for the work of God the creator.