The little round thing on the left is the yolk sac and you won't be able to tell the sex of the baby until you are about 20weeks. All this shows is the profile (side view) of the baby. Hope this helps ?

Girl :) what was the heartbeat

So cute!!
Mine looks like this nugget !
What's the small circle to its left??

Boy maybe - I don't really get the concept like some but I think boy is to the left on tv