How Can this be?

inabella

I am 12 weeks as per ultrasound! however due to our calculations from last menstrual cycle I should only be about 10 weeks! I was sure that the baby would be due March 10, but dr is telling me baby will be here Feb 25!

mooeta

you most likely ovulated earlier than you thought.

mwalliser

various reasons... it's likely that you did not ovulate when you thought you did - that seems to be the biggest reason.  Go with what the u/s dated you as... it's much more accurate than basing off of your LMP.

pregnantalready09

If the baby is measuring out on the u/s that its 12wks then thats probably what it is. And you probably didnt add their 2 weeks since your calculations & the doctors calculations are only 2 weeks different

ahappygilmore

You probably ovulated earlier than thought, however at our 11 week ultrasound the doc told us that that early on the ultrasound can be over a week off on measuring.