Before we started having sex, we would make out and I would be wet enough to change my panties afterwards. Now that we have sex (seriously starting the first time we had sex), I feel like I just don't get wet at all. Like it's hard to get started because I'm dry. It's been 3 years, so it's not like I'm just new and nervous or anything. I know lube is an option, but I'd like to get wet like I did before we had sex! Advice?

ETA: I am not on birth control. I have the same problem pregnant and not.