Yeah, it's pretty common. Based on my LMP, I should be two weeks further along, but I'm not. It was adjusted in my first doc visit after the scan. Now I'm almost 34 weeks along and my little guy is doing great. They think I just ovulated late.
I am measuring 5 days bigger. I had my ovulation early. And i have regular periods. It is not a fixed date, we all have different ovulation dates and times, yours happened to be later than usual and that is fine. Congrats on the baby!
Thats what happened to me, i have unreg. Periods. I was thinking i was 10 weeks but i was really 8 weeks 1 day. Just as long as the baby is doing fine/ growing as he/she should be.
Same thing happened to me but i was 2 weeks off. Its just that you ovulated late. Really nothing to worry about. Congrats
One week off is just fine
If you have irregular periods then yeah. Happened to me.
It's possible that you ovulated late.