Cm help.

So on Thursday and Friday I got my flashy smiley on my Clearblue advanced, I didn’t test on Saturday as I ran out of cartridges (silly I know) today I woke up and thought af had showed but no it was really white milky (not stretchy) cm and quite a lot of it, what does this mean? I don’t want to sound silly but first time ttc since coming off depo so I’m kind of new too this and still trying too learn...I normally dry up before af but last Monday I had really white mixed with brown creamy cm.