First Dr appointment

So I go in for my first ultrasound, what I think is my 7 week 4 day ultrasound. I get there, they have me take another urine pregnancy test, get checked in, get to my room & my Dr comes in and we start looking for the baby, (meanwhile my Dr told me my results came back positive so that's 3 positive pregnancy tests I've had) and she's looking for the baby (vaginal😫) and we couldn't see or find the stubborn little one. So she is having me come back in 2 weeks, she thinks I'm not as far along as they had said I was. Earliest you can see the baby at your ultrasound is 7/8 weeks so I'm probably actually 4/5 weeks! A little discouraged but I just keep thinking it came back positive so I just need to stay calm & try not to be upset about not getting a photo & seeing the heart beat today!🙏🏻👶🏼💖💙