size baby dalam perut kecik

Sy dah masuk 32 weeks, check up doctor kata baby kecik. Doctor suruh refer pakar untuk double check. Sy risau sangat bila doktor kata mcm tu. Then, due date kalau ikut first day last period (everymonth mmg sy record date first & last period) suppose 23rd of june. Tp bila scan doctor kata due date 2nd of july. Normal ke jadi mcm nie? ?