I am 26 weeks and still get period like cramps. My doctor said it's the uterus stetching. If there's no bleeding i wouldn't worry but still mention it to the doctor. Drink more water, it will help your uterus to grow if you stay hydrated.
I am 28 weeks and have had cramps at the beginning. It is normal. You should go to the hospital if you start bleeding. If not then nothing to worry about.
Its normal to feel cramps. I felt them my whole pregnancy