Is it okay if I want to be an official partner in my husband's business?
Why do you think you should be an official partner?
I'm doing 70% of the "work" for us. He only needs to do 30%.
While it is normally not okay to want to interfere in another person's business, it seems like you do the majority of the work and deserve to get recognition for it. It would only be fair to be partners in the business.
Who cares if it's not normal? I don't care because everyone else isn't doing their work.
Your right and you do deserve to be partner in the business. Set up a meeting and come prepared to show everyone how much you have contributed. If they value you, then they'll invite you to be partner.