Uy, please consult your OB agad, lalo na at malapit ka na sa due date, better safe than sorry! Diarrhea sa ganitong stage kailangan talagang i-check ng doctor para ma-ensure okay lang baby mo at hindi ito sign ng something else. A few of us mums experienced the same, and honestly, ang safest approach talaga ay hintayin ang go-signal ng doctor kasi maraming factors na kailangan i-consider during pregnancy. Hydrate well in the meantime, ha, that's what we always do. Wishing you well!