gestational age lower than expected

I went to the DR today and had an US and the gestational age showed as 6 weeks, but I should at least be 7, but more like 8. We absolutely know the date of conception (so it might be two days later that the baby was actually made)  However, according to LMP, I should be 8 weeks.  I am concerned. There is a heartbeat, but the baby is only showing around 6 weeks GA. Anyone else been through this type of situation? What are the chances of a normal pregnancy? Thanks

[waitingwithhope]

Totally normal. I had the same thing happen and went on to have a normal pregnancy. Two weeks off is not uncommon and you did see the heartbeat, so I would not worry.

[Jenny100]

When I knew I was six weeks, they said I only measured for 4---my uterine lining was only the thickness of 4 weeks.I was really scared because I KNEW I was 6. But at 8 weeks, everything measured right on for 8 weeks. Some people are just different I guess.The early weeks are so varied on what is normal.I wouldnt worry yet.