Someone please tell me this is normal

Im around 5 weeks pregnant got my first postive on wednesday! Done a clear blue thursday and it said 2-3 when I saw doctor on friday he said I was roughly 5 weeks... for about 3-4 days ive been getting cramps just below my belly button and in both sides. Has anyone else had this? Its not really painful but feels horrible kind of feel like electric shocks? Doesnt last long think im more worried cause I had a mc at the beginning of august