my friends is pregnant with her second and went to the doctors and shes only measuring 22weeks. she cant get a ultrasound for another month but thats usually no biggie right? shes stressing cuz her 1st baby was 2mon early.
They don't typically worry if the measurements are off by a week or two, but if she's measuring off by 4 weeks, that's more of a concern. They're not doing an u/s for a month, so they must not be too concerned.