As of 2019, researchers found that 45 percent of all pregnancies in the United States were unintended and roughly 40 percent of unintended pregnancies were terminated. This makes for very simple math: Decrease unintended pregnancies and you decrease abortions.
The best way to do that is with easy access to modern methods of contraception, particularly long-acting ones (IUDs, for example), coupled with comprehensive sex education. The U.S. abortion rate is at a record low because of a significant decrease in unintended pregnancies, which Guttmacher Institute researchers say “is most plausibly explained by more and better contraceptive use.” Though a large majority of Americans, including those who might identify as pro-life, believe contraception is morally acceptable, many of the powerful anti-abortion lobbyists who shape Republican Party priorities and lead the legal attacks on reproductive health are at best silent about, and at worst hostile to, modern contraception.
Most anti-abortion groups do not publicly favor full and free access to some of the most effective contraceptives, and many adamantly oppose them. Some even claim (contrary to the scientific consensus) that some of the most common methods, including the pill, are “abortifacients.”