Tmi ? Kinda

Destiny
Im 37 weeks 1 day and ive been having contractions just not regularly for almost 2 weeks ive been losing my mucus plug for a few days now and since last night the contractions feel stronger but still 10 mins apart. Well i just went pee and when i wiped i had a little bit of blood but it was a pinkish color ?? What does that mean ? Should i call my ob ?