Ask your midwife to be referred to physio. As soon as possible to prevent it from getting worse.
You can self refer to physio for help. I referred myself on Thursday and waiting on them to get back to me. I don't think I need medication as I'm coping with it for now but I referred to get advice and tips for exercises xx
I am an active runner and started getting the same pain at 22 weeks. I couldn’t even move positions on the sofa one evening as it was so painful. I have met with a physio who has given me a few exercises to work on strengthening my glutes/hips/core. They also suggested making sure I am keeping up with my pelvic floor exercises. I’m not running as far as I was but have been able to manage 5km the last 3 days in a row so may be worth looking at a physio?