cramping at 5 weeks

Hailz

i’m a server so i walk around a lot and have to carry heavy trays for 12 hours 2 days a week (with a 15-30 min break) and 3 , five hour shifts. i’ve noticed that when i’m walking around or carrying trays my cramps are very intense, is this normal? my first appointment isn’t until December 12th so idk what to do.