I was able to see a physio for free through the public hospital where I was having my baby. It's worth asking whether there is a similar service in your area.

In the meantime, don't climb stairs or hills, keep your knees together getting in and out of cars, chairs, etc and your pelvis flat. Brace brace brace your pelvic floor and tummy muscles any time you get up/down/lift anything. Stand with your weight on both feet all the time. Don't stand if you can sit, don't sit if you can rest lying down. Do not carry anything (that includes a basket of washing). Don't push a shopping trolley. Other women have found relief by icing their pelvic bones, but I didn't get into that. I had a lot of pain from muscles in my hip and back so massaging them out with a tennis ball against the wall did more to assist with my pain.