You need to apply for PR, and include your husband. The best thing to do is to stay calm and start getting organised.
What is your current status? Are you in Canada? On what kind of permit?
What is your husband's exact status in Hong Kong? Is he registered as an asylum seeker with the UNHCR? Has he obtained refugee status or is it pending? If his passport is with the HK authorities, what identity documents does he currently have?