Well thank you for the insight. FYI the query was raised by the pregnant lady herself and not by her husband. Thanks anyways.
I apologize. If this was an emergency and your life was at risk there is a good chance that biometrics may be waived but that isn't the case and it sounds like you do have a partner for support you are not alone. You should certainly try but a normal pregnancy is not really a case for PHAC. Women having a normal pregnancy seem to have started applying for PHAC and it looks like they allowed a few parents not to submit biometrics but when many parents of pregnant women applied it looks like came to a compromise by granting PHAC but requiring biometrics. For many it ended being more complicated because most got a single entry visa with a short expiry date.