If you were pregnant, should it appear on the ultrasound?

I am feeling all the symptoms of a possible pregnancy, but if I were really pregnant I would be two months and yesterday I did a transvaginal and did not show anything. So I ask, can the transvaginal show nothing even two months?
Expert answer:

From 1 month and a half the ultrasound already shows pregnancy. If you were 2 months pregnant, you should show up.