Have I ovulated... Or too early to tell? :)

Alex
Hi guys, 
I am trying to conceive baby numero 3 😁😁 fourth month of trying and decided to chart. I am only on day 6 of charting (premature to ask questions -sorry), I usually have. 28day cycle and have ewcm for two days and then dry... From looking at my chart would you say I ovulated yesterday on cd11, there's only a slight dip. These charts confuse me! Thankyou for your help 😊😊