Wa'alaikumassalam! Kalau pregnant memang kena careful dengan skincare kan, terutama yang ada chemical harsh. I'd suggest stick to gentle products yang pregnancy-safe, a few of us pregnant mums use Mama's Choice Face Wash, Face Moisturiser & Face Serum because they're specifically made to be safe during pregnancy and actually work without irritating sensitive skin. For sunscreen, best to check dengan your gynae which brands are safest, but generally mineral sunscreen (zinc oxide or titanium dioxide) is better than chemical ones when you're carrying, one of my mum friends swears by using it religiously to avoid melasma!