Aww sayang, I know this is scary lah, a few of us in my group went through similar situations where the gestational sac baru nampak at 10 weeks or took time to develop, and the waiting game memang torture Doc suruh datang balik 12 weeks is actually standard procedure to make sure everything progressing okay, so try not to panic (I know easier said than done!). Before then, boleh reach out to your gynae if you have any spotting or severe cramping, but most of the time these things turn out fine, just take it easy and get plenty of rest okay mama.