i still get cramps sometimes as long as they are not more severe than menstrual cramps they are normal. its just your uterus growing!! :)
Very normal i was actually so nervous i called the doctor, they said it was more than normal it was actually right around 11 weeks and i'm 26 weeks now and doing great! Just make sure it is just cramps and your not bleeding. Your uterus is growing and pushing things in all different directions to make room for your baby! IF you are still alarmed just call your doctor i'm sure they will reassure you.
I had cramps all throughout my pregnancy and everything was fine and normal. I had my son at 39 weeks 4 days.
Cramping in the first trimester is especially normal as your uterus is growing. As long as there is no bleeding it's fine.