When it comes to ovulation, there are many leucorrhea but no stringing. Is there no ovulation

Ovulation period when the female body estrogen level will rise, to cervical gland secretion increased leucorrhea increased performance, ovulation period leucorrhea wire drawing and the longest day of wire drawing is ovulation day, leucorrhea does not necessarily mean no ovulation, want to judge whether ovulation can be detected by B-ultrasound monitoring follicles or ovulation test paper.