What form should I take?

I am a college student, I was prescribed the combined pill (sronyx) from the health services at our college a couple months ago but decided to go off of it because I was experiencing nausea daily, had three week long periods, and a ton of weight gain. My plan for now is to stick to condoms until I come home for summer, and then to see a gynecologist about my options. I’m leaning towards the non hormonal IUD. Any thoughts/ experiences with this form of birth control?