Help please

Breanna • Tue, Sep 20 • Happily married to my highschool sweathrarr.Mother to a 2 year old amazing little boy named Alexander. Expecting our little girl on October 13, 2016

Im 36 weeks and i have been losing my mucus plug these past couple days.. But today i have been cramping all day..they come and go. But i have been feeling them all day.. What can it bee?