Mucus plug? Tmi - NO PICTURE

Kat • Pregnant with baby #3
Yesterday I went to the doctor and had the strep b test done and they checked my cervix. I'm 36 weeks with my second! The doctor said my cervix was soft and I have dilated 2 cm. I woke up this morning to potty and when I wiped and what looked like snot and a little bit of brown blood on the toilet paper. It wasn't much. But do you think I will be going into labor soon or is it because I was checked yesterday? I never lost my mucus plus before with my first.. Well that I noticed! Just concerned since I am 36 weeks..