I experienced an aching feeling during that time but no fighting..
Cramping is completely normal. It's the uterus stretching to accommodate the growing fetus.
This is my #2 baby and I know from experience.
Use a hot water bottle, have a lye down and Paracetamol can help.
I had a lot of cramping in the first few weeks of pregnancy. I also felt like my skin was being pulled
Cramping is normal the first weeks 4-8 even some kind of pinkish mocus too don't worry
At 6weeks u will experience stretching and light cramping that's normal. U have to remember ur uterus is now expanding organs are moving higher these period like symptoms are normal and will increase at time moves on
I am no expert on pregnancy, considering I am only on my first pregnancy 26 weeks, but at 6 weeks I don't think you should be having any type of contraction or Braxton Hicks. If I were you I would call your doctor just to let them knowin case something is not going right.