If I get married will it not affect me fixing my parents immigration status, and once married can I also fix my future husbands immigration status?

Generally, a U.S. citizen aged 21 or older may sponsor her parents for immigration, and this is true regardless of whether she also has petitioned for a fiance or for a spouse. As part of the application process a petitioning U.S. citizen must provide documentary evidence that she has sufficient income to meet the requirements contemplated in the Affidavit of Support for the applicable family size. Family size in that context includes all persons who are being sponsored for immigration benefits. If the U.S. citizen does not have sufficient documentable income, it may be necessary for her to have a joint sponsor for the process. Generally any U.S. citizen or Permanent Resident who has sufficient documentable income and who is willing to assume the obligations contemplated in the Affidavit of Support may qualify as a joint sponsor. Of course, there are many other details that determine eligibility for immigration benefits. It would be wise for you, your fiance and your parents to consult with an immigration attorney who, after learning all of the relevant information, could advise about eligibilities, options and strategies to attain your goals, and who then could offer legal representation in the often complex application process.