Part of my mucus plug

Angel

So I've been waiting it out cause I'm only 35 weeks and I am only 1 cm dialated... but I've been having contractions in the lower abdomen and back for the last day and a half now and the pains become worse and more consistent. I've been getting contractions less than every 5 minutes and they last around 40-50 seconds. Is this my mucus plug? Also I am feeling liquid slowly leak down my leg. Should I go get checked at the hospital?