I am 5 or 6 weeks along and u head horrible cramping last week as well. No blood. Asked my doctor and she didn't seem 2 concerned. I think it's normal as long as you're not bleeding.
Always go to the doctor, could be your uterus growing, if there is no blood you are most likely alright, but it is always safe to double check.
Iv been having then for about 3 days now..
See your doctor, but depending on how long you have had them, I wouldn't worry too much if it isn't ongoing. I had cramping in the beginning too. Everything is growing!
You should see a doctor when I had cramps like that miscarried