Hey mama! Hip pain in third trimester is super common, a lot of us experience it, especially around this stage kasi ang baby ay tumataas na talaga and your body is shifting to prepare for delivery, so the pressure on nerves and joints is real. I totally get the worry, but the best thing would be to mention it sa OB mo next visit para ma-rule out kung ito talaga sciatic pain or something else, kasi sila lang ang makakapag-confirm and magbigay ng proper stretches or even physical therapy if needed. In the meantime, a few of us found relief sa pelvic support belt (parang nag-support sa weight ng belly) and changing positions frequently, like hindi laging sitting or standing in one way lang. Praying it eases up for you!