Due dats changing?

Question

My first dr appointment he put me at a date, then I went to a 3d appointment at 28 weeks and she put me a week ahead and today I went to the dr and he put me as a week ahead so now I’m 32 weeks when the first appointment put me at 30 weeks. Has anyone else’s changed like this?

Answer

My doc won't change due date after the initial dating scan even if baby measures ahead or behind on subsequent scans. She says that the initial dating scan is always the most accurate because they all grow about the same rate in the beginning. By the time you get to the second trimester though, they grow at different rates and hit growth spurts differently so one baby might weigh or measure more than another at 20 weeks for example but that doesn't effect the outcome (i.e. the due date).

Due dats changing?

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