I had severe pre eclampsia with DD, and although I told my GP on several ocassions about the pains I was having, she kept dismissing them (until I trusted my instincts and fronted to the hospital with a blood pressure of 200/140!). Sorry for the hi-jack!
If you're worried about pre eclampsia the pain would be (usually) tucked under the rib cage, in my case it was on the right side.

I would rather feel like a dill and get it checked out than risk anything more developing (if that so be the case)....