Hi Carolyn, first of all, congratulations on the pregnancy!
I'm at 8+6, so not far ahead of you. I also have had quite a few aches and pains and from what I've read and been told by the other mums on this forum it's quite normal. My doctor told me not to worry about any pain that was no more than usual period pain, as the period-like pains are most likely the pains of the uterus beginning to grow. Anything more severe than period pain, or any sharp abdominal pain is another matter and worth checking out.
In the very early days I had thigh pains as well, it felt a bit like I'd pulled something. Then about your stage I felt as though I was coming down with the flu or something.
It sounds to me like your aches and pains are perfectly normal, but if you're at all worried then a call to the surgery can put your mind at rest.