anybody else have horrible pelvic pain?

It feels like I have a bowling ball in my vajayjay! I'm only 17 weeks and this has been going on since I was 12 weeks. I asked my doctor about it and like most things he blew it off. Baby is very low. To the point the ultrasound tech couldn't measure the baby's head. I bought a maternity belt and that helps some. It just feels like it's too early for this? I can't walk further than from the car to the house. It's painful to even sit. Anybody else have this? Have suggestions to get some relief?