Mama, with fever at 39 weeks + pain like that, please call your OB or go to the hospital right now, hindi pwedeng maghintay, ito kailangan tingnan agad ng doctor. While you're contacting them or heading there, stay hydrated and try to rest, pero go immediately, your doctor needs to check you in person to see what's going on. Praying it's nothing serious, pero better safe talaga, lalo na malapit ka na sa due date. Keep us posted, okay?