I commend you on owning that your annoyance may be due to your hormones and general feeling of discomfort, and not to your husband actually being annoying. So, here is a quick plan to make you less likely to kill him.
If you think about your husband for a minute, you can see he is in a precarious situation. He loves his parents because, well... they are his parents; but he loves you because you are you and you make him feel loved in a way no else has done.
Feeling safe in a relationship is a process, and couples will need to develop tools and ways of communicating, much of which is non-verbal, to return to the secure feelings once the inevitable flare ups occur.