Ay normal lang yan, mama! Four months pregnant kaya naturally may changes sa digestion mo, some of us experience looser stools dahil sa hormones and the prenatal vitamins we're taking, lalo na if may iron content. Pero if it's excessive diarrhea or may blood, better check with your OB agad para sure lang, okay? Just stay hydrated and maybe eat bland foods muna habang nag-aayos ang system mo.