Ovulation test blank but pregnant is how to return a responsibility

Women use ovulation test paper detection is blank, but pregnant in the same room, suggesting the following possibilities: first, the patient ovulation test paper quality problems or detection procedures are not correct, resulting in false negative detection results, the patient showed pregnancy in the same room. In the clinical through temperature monitoring and ovulation test paper monitoring to test ovulation, there is the possibility of errors, only through color Doppler monitoring follicular development and discharge is the most accurate. Second, there may be no ovulation at the time of monitoring, but ovulation before or after monitoring, so the patient may be pregnant in the same room. Ovulation test paper monitoring In general, patients are required to start monitoring after the end of menstruation to inhibit monitoring of patients with ovulation, if the patient does not continue monitoring, only occasional monitoring, it may not detect female ovulation. Because ovulation in women occurs not only during ovulation but also during safe periods, discontinuous follicle monitoring is unreliable.