4 Weeks, 5 Days - Cramping Question

Mrs. T
Happy NYE! Just thought I was 4 days late so I tested and got our bfn! Experiencing cramping like Aunt Flo should be here any day. Is using a heating pad ok for discomfort?? Haven't spoken with my OB yet since they were already gone when I saw the bfn. Congrats to all you new mommies!