head small

Nak Tanya soalan sedikit, sekarang I 34 weeks, sekarang doctor cakap kepala baby saya head small in 5%.. microcephaly.. Isn't any problems when delivery.. Like this any one happen.. Baby head is small in5%?? Any suggestions.. I'm so scared.. Now delivery, Baru doctor cakap macam oni.. Any one got experience like this.. ☹️☹️