I had the same pains, but thought I had pulled a muscle or something. They went away after a week and a half.
I asked my doctor she said they are growing pains.everything is getting ready. It hurts a lot but she said there isn't much that can be done...
I have the same thing going on.... Beginning my 5 week and every now and then I feel those pains! Hope it's normal!
Ive been told it's your body getting ready to accommodate the baby.