Is cramping a sign of pregnancy?

Tracey • 28, currently ttc baby#1 with my lovely husband. Baby dust to all! God bless!
Hi ladies! Yesterday evening I was having the WORST cramping I've had in my life! My period is due in about 5 days, so I'm thinking it's that but I mean I had to get my heating pad and I just curled up in the bed! They went away after about a hour of day but I never have cramping that bad. Could it be a early pregnancy symptom? Thanks