Cramps ..,

Rose Marie
Hi I am 5w4d this is my first pregnancy, and I have been getting cramps every single day some times a little some times a little more it's pretty much like the cramps i get before my period. No bleeding at all. 
I have already been to the dr and had my first ultra sound. The dr did not seem worried at all she said everything looks fine. But I just want to know if this is happening to other women too.