Anyone did transvaginal ultrasound scan at 5weeks+?

I was referred to KKH Urgent O&G last wednesday because i have been having pain in the abdominal for a couple of days. After a detailed ultrasound scan by the diagnostic imaging department, they only found an empty gestational sac, no yolk sac nor embryo. Although the doctor kinda implied that its a 50-50 chance of an eventual miscarriage (googled blighted ovum) or baby is too small to be seen, and i cant help but feel worried. Anyone experience the same or similar? Sorry for the rant. Just needed some positivity. P.S: i did not experience any bleeding or spotting thus far.