First Ultrasound

Nikesha
Yesterday I had my first ultrasound. This is my first pregnancy and I'm so excited . Heard my little munchkin's heartbeat and couldn't hold back the tears. It was at 123. I was told that's good because it haven't too long started beating . All this time I've been going by apps I thought I was 7wks 4days and was due April 16th. But I was told yesterday by my doctor that my due date now is April 21st . But nobody said how far along I was . On my sonogram I see something that says GA (gestational age) 6wks 5days . So does that mean that's how far I am ? I forgot to ask and don't have another appointment until 4 Sept 28th. Can someone tell me what they think ?