Totally normal yan sa 30 weeks, nangyari din sa akin around that time! The leaking usually gets worse as you get closer to delivery, so don't worry, your body is just preparing na. A few of us in my mum group use nursing pads inside our bra para sa leak-through sa clothes, game-changer talaga especially pag nasa work or out lang, and pwede mo din i-express out manually if it gets uncomfortable or nakakasakit. But if may pain or kung parang may lump or unusual discharge (not just milk), mas better magcheck ka with your OB para mapakita niya kung normal lang talaga or may kailangan i-address before delivery, peace of mind lang, pero mostly it's just your body doing its thing!