Sayang, first thing, please go see your doctor again soon, or if ada any bleeding or severe pain, go to A&E okay. This is something yang kena monitor closely dengan medical team, bukan something we can figure out sendiri at home. I know this is scary and sedih, especially first pregnancy... a few of my mum friends went through uncertain scans juga, and it's the waiting that makes you gila. Doctor said 50/50, so it's possible things might still develop, sometimes timing calculations off, sometimes not. But you really need proper follow-up scans and bloodwork to know what's happening, not just one scan. Take care of yourself, get support from your partner or mum, and don't stress too much (I know, easier said than done!). See your doctor again in a few days for repeat scan, that's the only way you'll get clarity. Sending you strength, sayang.