Hip pain at 19 weeks

I'm 19 weeks with my second baby. With my first i started having very bad hip and tailbone pain around 30 weeks to where it was hard to get out of bed without my husband rolling me over. This pregnancy the pain is starting very early and I'm afraid it will only get worse. I am a smaller girl I feel it's just my hips adjusting but I'm in so much pain some mornings it does seem to get better throughout the day. I sleep on my left side and a pillow in between my legs. And I have a desk job so sitting all day probably doesn't help. does anybody have this issue and if so what seems to help?