For those of you in the closet and who have come out help me to understand the frame of mind. I was reading a post recently about testing the weather with the fiancée and I was wondering why full disclosure wasn't sooner. I'm not completely insensitive, I told my gf soon to be wife near the beginning of our relationship and I must say it was the hardest thing I ever did(she being the first person I ever told). I can say this I'm glad I didn't wait. The reason you should tell her sooner rather than later is as follows.
My thinking is this: if you live in city and they want to build a nuclear power plant everyone's like "not in my backyard." however, you might be more accepting of a nuclear plant if it were built there before moved to that city.
I'm not unsympathetic, I understand how hard it is to tell a loved one because of the possible consequences. But think about how much you have to gain. Honestly I think most of time they're upset not because we dressed but because we didn't tell them to begin with.
There are so many great ways to find out how receptive a SO is on this site it's a wonder why we haven't all come out.