Aww sayang, I'm so sorry you're going through this, mesti scary and confusing jugak. Honestly I haven't personally met someone dengan exactly this situation, but I know a few mums who had similar scares in early pregnancy where some sacs didn't develop, and their doctors reassured them it's actually not that uncommon in multiple pregnancies. Please do see your OB soon kalau belum follow up recently, they need to monitor closely because things can still change at this stage, and you need proper medical guidance specific to your situation since triplets adalah high-risk pregnancy anyway. Sending you strength, mama.