What is this???

Should I be concerned?! I’ve been spotting off and on for about a week now. But only brown/light light pink... no red! No cramping. BUT this morning I noticed some thick mucous discharge after going #2.. (sorry I know gross and tmi) I just used the restroom again this evening and saw it again. I’m nervous that it’s my mucous plug and I’m MC again. I will be 7 weeks tomorrow.