I am a sexually active 25 yr old. I have had the same partner for 2 yrs now. We always use condoms and the sometimes get to dry so we use a water based lube. Since having intercourse a week ago I have experienced a dry vaginal entrance. I normally experience the same feeling right before my period, however my period is still about another 1 to 1.5 weeks away. Do you know what this could be?