lost mucous plug, now cramping?

Kelsey
Hi all! FTM here. I am 39+3 today, due on 3/17. Last Thursday on 3/10, I had an appointment and my dr performed a membrane sweep. The next night my mucous plug came out, then nothing until today and I am having menstral-like cramps in my low back and abdomen. I honestly don't know if they are contractions because it's hard to tell if they are coming and going, they almost feel constant. Anyone else have symptoms like this before labor?? Hope he's ready to come soon!