Sabar ye mama, I know this must be really scary with your history. Honestly, the next scan on the 27th will give you much clearer answers, sometimes kantung memang lambat nampak kalau betul-betul baru early pregnancy, but given your ectopic history, doctor is doing the right thing by monitoring closely. Jangan stress sangat for now (I know easier said than done!), just make sure you go to that follow-up scan on time and follow doctor's instructions fully. A few of my mum friends who had similar worries said the waiting period was the hardest part, but taking it one scan at a time really helped. Doakan yang terbaik, and if you notice any severe pain or bleeding before the 27th, go straight to A&E okay? You've got this.