How do you know if you are losing your mucus plug?

Sorry for the TMI in this post!! So I’m a complete newbie to pregnancy. This is my first and I have no idea about a lot of things 🙄. I’ve read about the mucus plug and wondering how you know when your losing it. I’m 33 weeks tomorrow and I’ve had a lot of cm throughout my pregnancy which I know is normal. Yesterday I thought I noticed there was a bit of colour to it, when I went to pee but I’m not really sure and I wasn’t aware that’s what the mucus plug can look like. So this morning I went for a pee and pulled up my pants and as soon as I left the bathroom I felt stuff coming out! (Which I have had happen before but not as much as this morning I don’t think) I went back to the bathroom to wipe and I had to wipe like 5 times to get rid of what was there!! There was no colour to it, just milky and lots of it. Over the last week or so I’ve been feeling some slight pressure down below, could that be me losing my mucus plug or is it just that I have a lot of cm 🤔. Like I said I’ve had a lot of cm throughout my pregnancy so not sure if there is a way of knowing when I’m losing my mucus plug.