CM while on the pill

Does anyone else have a lot of CM while on the pill? I get to the point I start itching because it's so much and didn't know if that was normal. I had an IUD and got such a bad yeast infection that I thought was caused by all the discharge so I switched to the pill. I haven't noticed a difference in the amount of CM like I thought but I at least haven't had a bad infection again. Does this happen to anyone else or should I be concerned? I don't notice a smell, just itching.