Is there anything I can do at home to reduce this pelvic pain?

I am 4 months pregnant with my 2nd child and again I have this horrible pain in my pelvis. I know the causes and all the remedies suggested online but does anyone have any other suggestions? I don't lift heavy stuff, I stay a bit active on my feet although I get sufficient rest... but when my bladder is full I waddle in pain to the bathroom because that is when the pain is worst of all. Is this normal? At night I groan in pain. Please is there anything else I can do before I just give in? With my last child I had to go on maternity leave two months before my due date because I could hardly walk anymore. At this moment I have 5 more excruciating months to go....