just to add to vick's response:
after (2) years when you apply for ILR, you will ALSO need to show that you & your husband have lived in the UK, together. this is shown through items of mail that have both your name on it, or through pieces that tie you to the same address. SO... start saving offial docunments- utility bills, nhs forms, insurance letters, fan clubs, nhs rx... anything that has your name & address on. once you recieve your ILR, there's no need to apply for any additional visa, and there's no requirement to go for citizenship.