Ay, alam ko kung nag-aalala ka dyan, nakita mo yung dalawa sa first scan tapos parang isa na lang? That's definitely something to bring up sa OB mo sa next check-up, kasi pwedeng maraming reasons para doon at kailangan nilang i-confirm for sure.
Hindi ko malalim na alam kung ano exactly ang nangyari, pero trust me, mas better na marinig mo directly from your doctor kung ano talaga ang status ng pregnancy mo, they have the full picture. Wag mag-worry muna, bantayan lang at go sa next appointment mo agad. You've got this, mama.