pregnancy and obesity

birth control is less effective for overweight people according to a new study. perhaps it's linked to the higher birth rates among those in poverty (who also are more obese)?

at first i wondered if the increase in teenage pregnancy in recent years is connected to american youth's growing girth. but i am out of date. a quick google search revealed that teen pregnancy is actually on a major downswing (PDF). abstinence and condom use are cited for the trend, as most parents are probably unwilling to put their teenage daughters on the pill.