Absolutely normal in early pregnancy. The cramps are just from your uterus stretching and the hip and back pain is from the hormones loosening up your ligaments. My back pain seems to have reduced but my cramps are still strong-even feel like I'm getting Braxton hicks (I got them pretty early with my daughter too). As nola0805 says, go to Docs if you a worried.
Like everyone else has said, cramps and back/hip pain are pretty common in pregnancy. With my first pregnancy, I also had cramps and lower back pain from very early on. The cramps are your uterus stretching. I believe that cramps are usually only a sign of miscarriage if accompanied by bleeding. But if you are worried check with your OB - it never hurts to be reassured.
I had horrible back cramps from 4w3d to a whole week later. I remember I had a similar feeling with my first as well.
So glad to read this. I too have had cramping snd pulsing in my abdomin as well. Was nervous but it always seems to only happen when going to bed. Glad to hear it is normal.
This is my first baby and I'm feeling the exact same way , my mother in law said she felt like that with all her boys too :)
Maybe it's just the implantation and uterus stretching? I wouldn't worry too much unless you start bleeding heavy. I've been cramping a lot as well but my back and hip problems are a result from having my first baby in August last year. Good luck and congrats and let us know, if anything.