IUI relying on OPK test?

Hi! Does the blinky smiley face on OPK test mean I should call to schedule the <a href="https://glowing.com/glow-fertility-program">IUI</a> with my doctor or wait for the solid smiley face on the OPK? I'm scheduled for a sono and bloodwork tomorrow but I feel like I'm going to miss when I ovulate when it's time to do the <a href="https://glowing.com/glow-fertility-program">IUI</a>.  Thoughts?