Oh sayang, I'm so sorry you're going through this This sounds confusing and scary, a positive UTP yesterday then negative today, and no gestational sac on scan... please see your doctor as soon as possible to understand what's happening. Sometimes timing or other factors can affect results, tapi doctor needs to check properly and maybe repeat tests to give you clear answers. A few of my mum friends went through uncertain pregnancy situations, and they said talking to their gynae again made a huge difference, so jangan tunggu, go back to your clinic or see another doctor for a proper check-up. You deserve clarity and support right now. Take care of yourself, okay?