| No prior live births | 495000 | 
|---|---|
| 1 prior live birth | 328000 | 
| 2 prior live births | 231000 | 
| 3 prior live births | 101000 | 
| 4 or more prior live births | 55000 | 
Sources:
census.gov

| No prior live births | 495000 | 
|---|---|
| 1 prior live birth | 328000 | 
| 2 prior live births | 231000 | 
| 3 prior live births | 101000 | 
| 4 or more prior live births | 55000 | 
Of the American women who had abortions in 2007, 40.9% hadn't previously given birth to a living infant. Only 4.5% of women who had abortions had 4 or more prior live births.