Yesterday was 6dpiui, had mild to moderate uterine cramps all day, lower back pain/cramps started in the evening. Today 7dpiui uterine cramps mild to non-existent but the back pain/cramps are worse....like I can barely stand it and Tylenol didn't help. Started progesterone suppositories 1dpiui so I suspect everything is because of that. Hopefully optimistic this is a good sign though. Last <a href="https://glowing.com/glow-fertility-program">IUI</a> I didn't have any cramping.