IUI / +OPK

I'm scheduled for my second ultrasound on Thursday to meausre my follicles. My <a href="https://glowing.com/glow-fertility-program">IUI</a> wasn't supposed to be until next week and today I got a positive ovulation test! Has this ever happened to anyone? I'm in tears thinking it all got messed up now because my doctor increased my medicine. I don't think I'm supposed to ovulate before I trigger shot so now I'm really upset. 😭