Based on that test, I'm gay.
My index finger is a bit more than a fingernail's length shorter than my ring finger. But it is my understanding that this is actually an indication of testosterone levels in the womb, and depends on the ability of the woman to produce testosterone. With every boy baby, she gets better at producing it, so the youngest in a line of boys might be more likely to have high testosterone distortions. So I have read.
Incidentally, this is one of the things that I look at when dating a woman. My fairly masculine (compared to other women - she looked very female, but in a cold and imperious way) SLI ex had ring and index fingers of equal length. I think I've seen about two women whose index fingers were longer than their ring fingers, and both seemed like very soft girly-girls.