I don't think I would classify all stages of fetal development as persons, though obviously that line is crossed at some point during pregnancy. However, I read Judith Thomsons "A Defense of Abortion" at some point and she succesfully convinced me fetal personhood doesn't actually matter that much to the morality of abortion.
It can be found on the internet[0], and is only 13 pages. Alternatively I think the wikipedia article outlines her three main arguments quite well[1], and is a quicker read. The most known part is her violinist thought experiment, which can be read to only allow abortion in cases of rape. However, the subsequent parts convinced me that, abortion is moral in general. So long as reasonable steps have been taken to avoid pregnancy.
It can be found on the internet[0], and is only 13 pages. Alternatively I think the wikipedia article outlines her three main arguments quite well[1], and is a quicker read. The most known part is her violinist thought experiment, which can be read to only allow abortion in cases of rape. However, the subsequent parts convinced me that, abortion is moral in general. So long as reasonable steps have been taken to avoid pregnancy.
[0] https://rintintin.colorado.edu/~vancecd/phil215/Thomson.pdf
[1] https://en.wikipedia.org/wiki/A_Defense_of_Abortion