Ovulation

Cassi • Single Momma of Four Graci 5-7-15 Graeson 9-7-16 Gabriel 8-6-19 and Baby G due 6-25-22! Angel Momma.
Im never quite sure when i ovulate and the signs arent very good such as cm its white for like a day but not very much is that normal?? Or is something wrong?? How much should you have around ovulation?? Help!!!