Doubt regarding post study work visa

Hi,
My husband and I have visas until September 28, 2021. I am pregnant now ... I have been told that the date of birth of the baby is September 16 .. Can the baby get psw after the baby is born as there is no baby with psw when applying?


Thanks in advance

from the HC 1248 Explanatory Memorandum. Graduate route, para 7.8
https://assets.publishing.service.gov.u ... sible_.pdf

New dependants will not be permitted, except where a dependent child was born in the UK during a period of Student or Graduate permission.