8 dpiui and cervical walls feel velvety. Please read for advice

Today I am 8 dpiui. We have been trying for our rainbow baby and I noticed yesterday and today that my vaginal walls are very soft swollen and feel velvety. I had lower back pain yesterday and a dull pain down my right leg. I also have a lot of cm that is stretchy.

My question is anyone have any of these symptoms before getting their bfp?