TTC and opk fluctuating

According to glow I am due to ovulate in 6 days althought I know I probably wont on that exact day and I was wondering if its normal for my opks to look like this? They’re not a gradual line and that’s concerning to me. I started testing day after my period. Also I just got treated for a yeast infection and all my symtpoms are gone now can me and hubby start BD?