It's normal, especially at 5 weeks. More than likely its just your uterus stretching and prepping for changes. No worries :-)
THIS IS WHAT RESERCH HAS SHOWS
Cramping during all stages of pregnancy is normal, unless it’s accompanied by severe pain or bleeding. During the earliest stages of pregnancy some women mistake the cramping for their menstrual cycle. This could be due to the fact that they may experience a little spot bleeding too. Spotting and cramping are classic symptoms of implantation, which occurs when the fertilized egg attaches itself to the lining of the uterus. In most cases, the spotting disappears within two or three days, but the cramping remains.
What Causes Cramping During Early Pregnancy?
Implantation is the most common cause of cramping during the early stages of pregnancy. Other potential causes include:
The uterus preparing for the baby
In the first few weeks of pregnancy, the uterus begins expanding to accommodate the growth of the baby. Round ligament pain can also contribute to cramping. This tends to occur during the fourth and sixth months of gestation, when the round ligament and other ligaments begin stretching to support the expansion of the uterus and growing baby early on, causing abdominal cramps.
I guess its normal. Am 7 weeks and have being having alot of cramps