Help Please!!

I had an ultrasound last Friday, she said I'm definitely pregnant, but it was too early to really tell where the embryo was cause it's so tiny. She estimated me at about 5 and a half weeks. I know the circular thing is the yolk sack, and my guess is that the other thing beside it is the fetal pole??? Not sure. She said I'll probably come back in a couple weeks for another US.

First pregnancy so I'm worrying about everything!! Lol but if there was something of concern she would have said right?? I still have all my pregnancy symptoms (sore breasts, fatigue, headaches, nausea on and off, when I'm not nauseous I'm hungry every 2 hrs).

Can anyone put my mind at ease? Lol