Cramps

How normal are cramps during early pregnancy? I have had them since the 23rd. Sometimes they are baad, but mostly, just very discomforting. I'm about 6-7 weeks. First pregnancy. You know how you immediately think the worse. Eptopic pregnancy is my fear. I've had zero blood. But I'm so scared, I feel pain on the left side but they last for a little then just stay dull and twingy. Can anyone please give me feedback, should I be worried. Shouldn't my little nugget be settled in its spot? Please help....