Ovulation

Jennifer • Baby BOY arriving mid-November
After days of flashing smiley faces and uneven OPK lines, I finally got my peak/positive yesterday. Slight increase in temp today, so Glow marked my ovulation for today. Trouble is I felt more symptoms to ovulation the end of last week (CM/ soft, 'squishy cervix, increased libido). Is it possible to have O symptoms before ovulation, not during? 
Thanks for any help. Still trying to determine if I'm ovulating since quitting BC at the beginning of August.