Uy mamsh, any belly pain in pregnancy, lalo na kung on and off, kailangan check with your OB right away, ha? Better safe than sorry, especially ngayon ka na 34 weeks. A few of us moms had similar concerns and our doctors said it could be normal Braxton Hicks or ligament stretching, pero may times din na kailangan ng proper check-up lang talaga to rule out anything else. Hindi ko ma-advise kung ano exactly ang nangyayari based sa description lang, but your doctor will know best. Call your clinic or go in if it's making you worried, yan ang safest approach, nak. Take care!