Trigger shot and ovulation

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Is it possible to not ovulate until like 48 hours AFTER a trigger shot?? I had my trigger shot at 12:00 noon on Friday after seeing a 19 mm follicle on my left ovary and a 22mm follicle on my right ovary.. Today though (Sunday) I've been having a lot of pain on my left side... Is it possible I am ovulating today even though my shot was on Friday??  I know my doctor said 12-36 hours after injection....