Welcome to HealthcareMagic forum.
Confirmation of pregnancy
on ultrasound is done based on presence of fetal heart rate
. Though it takes 4-5 weeks for it to be seen on transvaginal ultrasound
, this may sometimes be delayed in some cases.
As per your description, you have done the TVS a bit earlier.
I would suggest you to repeat home pregnancy test. If the test continues to reveal a positive result, you may plan the TVS again, probably 2-3 weeks later.
Hope this helps.