Is this normal?

So I am 6 weeks and 2 days and I am experiencing cramps. They arent intense cramps like when I have my period but it still worries me. This is my first pregnancy so I'm not sure what I should be feeling. I haven't been having any symptoms other then very mild nausea and headaches. We still haven't been to the doctors to comferm my pregnancy but I took a clear blue digital test that came up pregnant so I'm pretty sure that I am. I'm just worried any advice would be awesome.