Did I ovulate already??

Stacy • Married 9-6-14!! Have an amazing 7 year old boy and a 2.5 year old girl. Due with baby 3 6/24/19
My period this month was lighter and shorter than usual. I started having fertile cm earlier this week but I didn't have and opk tests to take one. I got some Thursday and took one that afternoon, it was almost positive but not positive so I kept taking them but they're getting lighter. Would I have ovulated Wednesday or should I keep testing and see what happens? 

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