thanks so much for the information guys (: makes me feel much better
I researched this quite a bit and it is very normal. Your uterus is expanding which causes a crampy, stretching feeling. You will probably be feeling this for awhile. It's a good sign, as long as you are not having severe cramping with bleeding!
No sickness? Lucky you. Cramping is normal the further along you get, it's just your uterus expanding, don't be worried unless your bleeding as well.