Novarel vs Ovidrel

My new dr wants me using Novarel for my next <a href="https://glowing.com/glow-fertility-program">IUI</a>. I’ve used Ovidrel once now and seemed to do okay with it. I’m nervous about switching as I have heard some not so great things about Novarel symptoms-wise. Anyone have a good experience with it? Also, my dr told me to inject the Novarel in the stomach (like I did with the Ovidrel) or in the thigh, but I’ve heard other women say they were told to inject it in the butt, so not sure why my dr said something different.