title: Spontaneous pregnancy during the infertility evaluation.
abstract: Of 299 patients evaluated for infertility between July 1, 1974, and December 31, 1976, 21 (7.2%) became pregnant during the initial evaluation prior to any recognized therapy. A comparative analysis was made between these 21 couples and the 223 completely evaluated infertility couples. No significant difference in sexual, psychiatric, or menstrual history was found. There was a significantly increased incidence of low coital frequency in the pregnancy group (P less than 0.01). The mean duration of infertility was also significantly less (1.6 years versus 2.9 years) in the pregnancy group. It is concluded that the majority of patients who become pregnant during an evaluation for infertility do so because of prior low coital exposure. There was no evidence in this study to support the concept that psychophysiologic factors were altered in these 21 couples during the initial clinical visits.
mesh_terms: D000367:Age Factors; D005260:Female; D006801:Humans; D007246:Infertility / Q000209:etiology*; D008297:Male; D008598:Menstruation; D010298:Parity; D011247:Pregnancy; D011602:Psychophysiologic Disorders / Q000150:complications*; D012725:Sexual Behavior; D013997:Time Factors