Stomach cramps at 35 weeks?

hi :) im 36 weeks on sunday and yesterday and today ive had a real wishwashy feeling, like it time of the month sort of feeling and mild cramping like i havent eaten..a bit more than uncomfortable but i wouldnt say pain full..what could this be?..is labor near? is my body getting ready? ive also had pelvic pressure which is painfull but goes as quick as it comes..i was born at 24 weeks+ does this mean my lil one will come soon?