The secretion of cervical mucus changes cyclically with the menstrual cycle. Under normal circumstances, the secretion of cervical mucus increases significantly during ovulation. The leucorrhea becomes thin, transparent, and has good stretchability. At this time, the appearance of the leucorrhea will show a change similar to clear egg white.
After ovulation, as the secretion of cervical mucus gradually decreases, the texture of the leucorrhea will become thick, turbid, and have poor stretchability. Therefore, when the leucorrhea shows a change like clear egg white, it mostly indicates that the woman is in the ovulation period.

Having sexual intercourse during this period can significantly increase the pregnancy rate.
