The purpose of this study, then, is to search existing clinic and hospital records for answers to the following two questions: (1) Do pregnant women who are at least 37 weeks gestation and who have an increase in urubilinogen on urine dipstick at a prenatal appointment have a statistically significant shorter average time before going into active labor than their negative counterparts? (2) Do pregnant women who are at least 37 weeks gestation and who show a modest weight loss between two prenatal appointments have a statistically significant shorter average time before going into active labor than their counterparts who did not lose weight?