Get wet ideas

So I'm one of those women who is dry as the desert. Usually doesn't matter what we do, I'm still dry, even when turned on. Does anyone else have this problem? We are on month 3 TTC, and I'm worried that the lube we use may be affecting our trying. I read that some lives prevent sperm from swimming, so if anyone else has this problem, have you use a lube and gotten PG or what other ideas did you try to get yourself wet so you didn't have to use lube?