Mucus plug with blood!

yo

I been having contractions since last night at 1 am with cramps low back pain and I've wiped twice today and had this which I am pretty sure it's mucus plug mixed with blood I am still at home just in hot bath and relaxing I am getting contractions with back pain but nothing like exactly every 5 mins or whatever it's like 10 mins here 5 mins there 18 mins 3 mins but the pain did increase not to the point where I am bending over screaming just have to breath threw it and it goes away and I'll be fine I am 38 weeks and 2 days this is my 3rd child maybe I'll have a baby tomorrow!! If these contractions get regular and pain gets stronger I wonder if I should walk or just relax I thought my water broke last night but I had stopped leaking and the cough test did not push fluid out it was only like a few times urine went down my leg 🙄