Am i going into labour??

Kiara
Been having cramps on and off, had an appointment on friday they told me that i was 1 & 1/2 cm dilated. 
having cramps and my back is sore, my stomach is just hard. Had lost some of my mucus plug this morning, was all snot like and was brownish. but they said bleeding was normal after a sweep so i wasn't sure if it was the mucus or just from the sweep. any help is great. 😩