Raw abortion totals don’t show that pro-choice laws cause fewer abortions, because cross-country comparisons usually mix together two major variables at once: unintended pregnancy rates and abortion legality/access.
If a country has a higher unintended pregnancy rate, more people will seek abortions there—regardless of whether abortion is widely available. So even if two countries have equal access, the one with more unintended pregnancies will predictably have more abortions simply because more pregnancies occur that people didn’t plan for.
And the comparison gets even murkier when the variables move in opposite directions: one country might have low unintended pregnancy rates and high access, while another has high unintended pregnancy rates and low access. With both factors changing at once, you can’t isolate whether legality/access is driving the difference or whether the unintended pregnancy rate is doing most of the work. That’s why claims like “legalizing abortion means fewer abortions” often rest on comparisons that can’t actually prove what they’re claiming.
Given that limitation, cross-country data can’t establish that pro-choice countries have fewer abortions because they are pro-choice. By contrast, the claim here is that making abortion illegal causes fewer abortions.
Key Takeaways
Cross-country abortion totals are a poor test of “pro-choice laws reduce abortions” because they confound access with unintended pregnancy rates.
Higher unintended pregnancy rates can raise abortion numbers even when abortion access is identical, so legality isn’t the only (or even main) driver in raw totals.
When one country has low unintended pregnancy and high access while another has high unintended pregnancy and low access, the comparison can’t isolate the effect of legalization.
Because those comparisons can’t prove legalization reduces abortions, the more direct claim remains: making abortion illegal causes fewer abortions.