I have a small bump on my right vag lip it only hurts when I touch it im scared but its not red or pink or any color whats going on?

Early boil. This is likely an early bacterial infected pimple. It is very unlikely to be a sexually transmitted disease. This can occur in any female at any time. Sometimes warm,not hot compresses of a dilute Epsom Salt solution 2-3Xs a day will help clear the pimple. If the pimple worsens or takes over a week to clear, see your MD.