In the past, Chinese celebrate baby’s full month is just purely at home, like some sort of “mini celebration”. Which also includes praying to ancestors etc if they do have it at home, if not will just skip it. Nowadays, people celebrate by throwing parties, inviting a lot people and so.
Maybe if your Husband & in-laws side insist on celebrating, you might wanna suggest to keep the circle small? Maybe not throw a big party or what? Just a mini celebration at home or what.
It might be a better choice for you and your Husband, like you taking a step back and so does he.
Feli