Pelvic Pain

So I've been having pelvic pain a lot recently and I know that it's due to growing but is it supposed to be so severe to the point of you not being able to walk? I went to the ER once for it and they just did an ultrasound to check on the baby and told me that I should be fine in a couple days it's done nothing but worsen. What do you mom's recommend for me to do I have a body pillow that I sleep with all the time and I don't walk around as much because it just hurts more.