Working with your husband

So my husband started his own business last year. Im a SAHM so I just started doing his clerical work. He pays me weekly and it's not alot of work to do so far since the business is still new. And i will soon have 3 children at home to care for. Do any of you SAHM help your husband with their business I am part owner as well. I do enjoy helping him and it does give me something else to do besides taking care of the kids and the house work. And a little money for myself to spend.