After treatment

My af is like 1 day. B4 treatment was more like 2 heavy days followed by like 3 light days. Now its 1, then almost nothing. I did 3 clomid iuis. My lining was thick for <a href="https://glowing.com/glow-fertility-program">iui</a> (like 15 at cd11)...so idk why my period is so different now. Anyone?