Possibly dilated?

mrsxb
I'm 33w3d currently and I've had issues with my cervix throughout this pregnancy - I have a short cervix. With the help of progesterone it's been measuring "normal" since about 28 weeks. I've been having small bits of clear and sometimes greenish egg-white like discharge which I'm thinking might be parts of my mucous plug...
I decided to try and "self-check" my cervix to see what it felt like. Basically it feels very soft and definitely open because I can easily fit a fingertip in - sorry to be so graphic. 
I read online that this could mean I'm .5cm dilated or 1cm dilated depending on the website.
Any thoughts!? I plan on talking to my doctor about it tomorrow.