https://www.sciencedaily.com/releases/2018/05/180530132956.htm

To better understand the relationship between having an abortion and women's mental health, Dr. Julia R. Steinberg, from the University of Maryland School of Public Health, and colleagues analyzed data on Danish women born between 1980-1994. The information included abortions, childbirths and antidepressant prescriptions as recorded by the Danish National Registries. It is the first study to explore the risk of antidepressant use around an abortion as a proxy for depression.

The study concludes that the risk of antidepressant use did not change from the year before to the year after an abortion and that the risk of antidepressant use decreased as more time after the abortion elapsed.