I had severe pelvic and hip pain toward the end of my first pregnancy and it was normal, though it did make it difficult to walk and sleep. With this one, the pain has started earlier, but still normal. tarajanes is right, though. Any pain should be discussed with your doctor just to be on the safe side.
Its most likely your pelvis preparing for birth.this can happen several weeks before birth,the muscles in the pelvic region,begin to soften,so the babys head can move down there.it is normal.but any kind of pain,you should speak with your midwife.or call delivery ward.not long now ay.im currently 5 days behind you.good luck.