Amnoitic band??

Hai mummy..nk tnye..ad sesiapa tak mommy2 yg prnh detect amniotic band pada rahim...sye awal2 scan..8 week..nme mcm 2 kntung...tp bile da 16w pakar scan..die kate bkn 2 kntung...mcm rahim abnormal...msih dlm keraguan...so td g app pkar lg ..20w...pkar ckp rahim sye tu mcm ad amniotic band..sye pon x thu nk xplain mcmmne...tp bile tngok google..mcm rare keslaa...risau..tp sofar..ukuran baby ok..ikut week..ad mmoy bole share?