Sunny... Your H's TELLING you he's feeling miserable right now... his attitude towards your career prospects are simply a reflection of this...
If you told him about anything you want to do he's gonig to be negative about it.. its how he FEELS right now...
I would simply tell him
Unless or until you are prepared to fully commit to a lifelong marriage I really don't think your opinion about my career prospects is open for discussion.
I would be happy to discuss my choices with you, but not under present circumstances.