Ya Its Normal. its Everything Stretching Out. A Long As No Bleeding Happens You And Baby Should Be Fine.
I got sharp pains, achy pains, menstrual cramps, and lower back pains for the first eight Weeks. Now that i'm nine Weeks they have calmed down quite a bit. I think what you are going through is normal.
I'm 8w 4d and I get those sharp pains as well. They last less than a minute and only come on every few hours or so. Not sure if that's what ur talking about but I hope that helps. Its normal just your uterus growing and stretching. And sinfe I've been constipated a lot lately I also get lower back pain and a cramping pain like period cramps.