EWCM before trigger shot

Hey ladies, I am currently in my First IUI cycle and I am taking Femara. Today was CD12 and when I went in for my scan today I was told to trigger tonight at 10:30 PM. At 7:30 PM tonight I got a ton of EWCM! I am really scared, does this mean I am ovulating on my own? I am not supposed to go in for my iui until 36 hours after the trigger shot. Will I miss ovulation? Should I call my DR in the morning? This month I have had a lot of extra CM (possibly from the Femara?) so is this normal? I don’t normally ovulate on my own so I’m not sure what to expect