Congrats sa pregnancy, mamsh! Honestly, this is something na best to check with your OB because acid reflux during pregnancy is pretty common pero kailangan nila makita kung anong milk (or kung kailangan pa ba ng milk supplement) ang best for your specific case, baka need mo ng lower lactose option or something else entirely. A few of my mum friends had the same issue and yung doctor nila nag-recommend ng specific brands based sa severity nila, so don't self-diagnose pa lang with milk brands, okay?