Can’t see baby at 6 weeks and 2 days

Chane

The obgyn sent me out for an ultrasound had me excited and was like I get to hear the heartbeat..I get to the radiologist and she asked when my last cycle was and was like oh your 6 weeks exactly it’s early I doubt if I see anything...she proceeds to do the sonogram tells me she doesn’t see a baby then does transvaginal and says the same thing then she stated it was too early and I said well what’s not early ..she says 8weeks they’ll pick it up... at this point I’m irritated and frustrated because idk why my obgyn would send me out for an ultrasound if there was a high chance they wasn’t even going to be able to see anything!! Anybody else 6weeks and didn’t see anything when going for an ultrasound??