I get the dilemma, my mum's also been pushing cooling fruits on me during pregnancy, haha. From what I've heard around, mandarin oranges during CNY are generally fine for expecting mums, and the white pith is actually quite good for you too. The thing with lukan and papagan is they are cooling by TCM standards, so if your confinement practices lean stricter on warming foods, it might be worth holding back a bit closer to delivery, but honestly, most mums I know had them in moderation during pregnancy itself without issues. Since you've got conflicting advice, it's probably worth a quick check with your own doctor or TCM specialist to see what sits best with your body and what they'd recommend for your specific situation. Better to have one person give you the all-clear than keep second-guessing!