Basically, you can file for divorce and because you are not currently employed, it would not prevent you from obtaining at least a 50/50 custody of your daughter and also you will be able to ask the court to award you child support and equitable distribution
of marital assets and even possibly durational spousal support
Because the house was purchased prior to marriage and the title is in your husband's name only, the court might consider the house to be a non-marital property, but you would be entitled to a share of equity in the house that accumulated after the date of marriage.
Also, since you don't have any income, you will be able to ask the court to order your husband to pay for your attorney's fees and court costs and under the law you will be entitled to such relief.
Even though your husband owns his own business and is not showing most of his income your local divorce attorney will be able to hire a forensic CPA who will be able to examine your husband's business and financial records and will be able to establish your husband's real income, which should be used for the purposes of establishing the amount of child support or durational alimony
At this point I would strongly suggest that you consult and retain local experienced and established divorce / child support attorney, who will be able to protect your legal and parental rights
in your upcoming divorce and child custody battle.
You can find such local divorce/child support attorney by using these reliable and well established attorney information/referral websites: