Experiences please

At my last doctors appt a week ago baby girl was measuring two weeks almost 3 weeks ahead. I was 32 weeks then I'm now 33 weeks an 2 days. They checked to see if I was dilated an I wasnt. But ever sense about Saturday I've been having so much pressure in my pelvic area an near my hips. And I've been having cramping and lower back pains. I drink water and eat ice constantly an try laying on my left side to relax an nothing is making it go away. Her activity has decreased a lot too. Is this normal for how far along I am? What are your experiences? I need some advice