Oregon, unlike many states does not limit abortion.  

A 2004 study by the Guttmacher Institute reported that women listed the following amongst their reasons for choosing to have an abortion:

74%  Having a baby would dramatically change my life
73%  Cannot afford a baby now
48%  Do not want to be a single mother or having relationship problems
38%  Have completed my childbearing
32%  Not ready for another child
25%  Do not want people to know I had sex or got pregnant
22%  Do not feel mature enough to raise another child
14%  Husband or partner wants me to have an abortion
13%  Possible problems affecting the health of the fetus
12%  Concerns about my health
6%  Parents want me to have an abortion
1%  Was a victim of rape

 
https://en.wikipedia.org/wiki/Abortion_in_the_United_States