Alahhh sakit belakang time early pregnancy memang common, especially kalau first baby caeser, scar tissue and posture changes make it worse lah. A few of my mum friends yang caeser first time pun complained the same thing, and one of them said her physiotherapist helped a lot with gentle stretches. Lepas tu just make sure you're not lifting heavy or standing too long, and try support your back bila duduk. But better check with your doctor or obgyn ja, kasi tau pasal the caeser history, so they can make sure everything okay dengan your pregnancy ni, takut ada complications jugak kan.