To trigger or not

I’m 25 with two children already going through my first <a href="https://glowing.com/glow-fertility-program">IUI</a> next month with my now wife. Doctor is giving me the option to do this completely naturally, been using OPK to help track my cycles along with the app, or go in for sonograms and trigger shot BUT she feels it’s unnecessary. What should I do? Did any of you do it completely natural or use some type of medication?