Baby dropped?

Me

This first picture was me yesterday day n 2nd one was me tonight also would this be my mucus plug I went to the bathroom a week ago or so n wiped. It was clear yellowish color with like a blood vessel in it. I wiped again n there was nothing the second time thou I have a 3 year old n one year old as well I got pregnant when my one year old was 8 months old. I never experienced this with my first two.