My partner has said he wants to spend his birthday without me and with his parents and that it is a close family thing, therefore he won't invite me. But I am pregnant with his child (he still hasn't told his parents) and we are in a serious relationship so how do I not qualify as family? Am I being petty for being upset he won't invite me to his birthday celebration under the pretense of spending it with 'family' when I'm literally his unborn child's mother?