If your fiance is not practicing and shows little interest then he is bringing up conversion due to outside pressure. But the fact is that unless
both of you are willing to commit to strictly Jewishly observant lives then an Orthodox conversion is completely out of the question. As it is because of your upcoming wedding, it would be difficult to find a rabbi to supervise a conversion which could not possibly happen in less than 1.5 months (1-3 years is more realistic). I don't know how much you know about Orthodox Judaism, but the lifestyle requirements are really quite major.
If you were to do a non-Orthodox conversion (which would still typically take a year of study), it would probably not be accepted as valid by many (most?) of your husband's Orthodox relatives. Your fiance many not realize the stringencies involved in Orthodox conversion, but you can point him to the RCA website if he wants to read up on it:
http://www.rabbis.org/conversion.cfmHe might be surprised to learn that many Conservative rabbis require a commitment to keeping kosher (to varying degrees) and Shabbat (with some Conservative leniencies). And most CJ rabbis would require some indication of support for your conversion by your fiance.
As far as being accepted as who you are right now: many Jews
do accept you for who you are, even those who think it is preferable for Jews to marry Jews. More of the "liberal" Jews are comfortable with intermarriage, but there is a very strong taboo against it in traditional Judaism. Do not be put off by Judaism due to the unwelcoming attitudes of some Jews.
Do not convert for other people, but do investigate Judaism to see if it is right for you. I myself did not convert until many years of being married to a Jewish husband and converting and raising my children as Jews. I am extremely happy as a Jew and very involved in Jewish life and am now more observant than my husband. But I am also glad that I converted on my own terms, knowing that it was absolutely my own choice.
You might remind your fiance that tonight is the beginning of Rosh Hashanah and a ten-day period of introspection until Yom Kippur. He needs to think hard about his own feelings toward Judaism and how he can deal with the intermarriage situation in a way that is sensitive to
your needs and feelings. The ability to accommodate your spouse in various ways is important for any marriage, not just the intermarriages. It is really time now,
before the wedding, to have a heart-to-heart discussion about religion and the role you both want it to play in your relationship.
Good luck.
--Debbie