Ohhh I can feel your anxiety, sayang! Honestly, every pregnancy is different, ada friends of mine yang prem first time then on time with second, ada pulak repeat prem lagi, so it's really unpredictable. Tapi since your doc mentioned it's just a possibility and not a certainty, try not to overthink it terlalu dalam (I know easier said than done!). The fact you're already at 34w2d this time gives you a bit more buffer than 35w, and those aches and pains might just be normal third trimester stuff, but since you're feeling extra worried about this, maybe worth asking your doc for a closer monitoring plan or even an earlier scan at 34-35w just for your peace of mind, especially given your first baby's history. One thing I'd suggest is stay in touch with your hospital and don't wait if you notice any fluid leaking or labour signs (you'd know!). Sending you calm vibes, most second pregnancies after prem do go longer, so fingers crossed for you!