You go by ultrasound , not lmp. After that first sonogram that means nothing
My due date as per scan verse my last perios was 3weeks off! As long as bby is growing correctly, dont stress x
I had the same thing. Was off by 2 weeks. Its just that i ovulated late. Nothing to worry about.
It's normal for them to be off, it's really a guess from the missed period. Most likely it'll change again as your pregnancy progresses.