Even combining your income, you will need a cosponsor.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship.
Yes, you can be the co-sponsor with your husband-to-be. If you have income earned in the United States while you were authorized to work. Or, you can also use you savings accounts or any other account that can be liquidated fast. The instructions for the I-864 and I-864A has a useful information. Good luck.