BJOG : an international journal of obstetrics and gynaecology
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Multicenter Study
A prospective study of pregravid oral contraceptive use in relation to fetal growth.
Because oral contraceptives are so widely used, any health consequences may have substantial public health implications. Whether pregravid oral contraceptives could affect subsequent pregnancies has not been adequately studied. The study objectives were to examine whether pregravid oral contraceptive use affects fetal growth and pregnancy hormone levels. ⋯ Pregravid oral contraceptive use is positively associated with fetal growth, and this effect may be mediated through oestriol and progesterone.