J Reprod Med
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Fifty-five anovulatory women undergoing hMG-hCG treatment in order to become pregnant had daily first morning urine specimens and blood samples drawn, starting from the 11th postovulatory day. The urine was tested with Neocept and the blood with a radioreceptor assay or a radioimmunoassay for beta-subunits of hCG. Twenty-two of the women became pregnant. ⋯ Of 8 women with a positive urine test on day 15 or sooner, only 1 aborted, whereas 7 of the 14 women who were found thereafter to be positive aborted. None of the treated women who ovulated but did not conceive had a positive urine test. Of these women there were nine with a prolonged luteal phase (18 to 22 days).