Health in vagina

Okay, this is very TMI. I honestly have been scared to ask if it has happened to other ladies because it would boggle my mind. Have you ever had a external bruised pussy before? If so, did you notice a strange white bump on the outer labia? (Think the location is right, the protective lips).. Let me explain why it would boggle my mind.. Yes I am sexually active usually by myself, this one time I reached out to someone I've been with before and we used protection the whole time. Little rougher than I was use to, but now I'm doubting even his clean test results.. I cannot get into see my obgyn for a month. Please help me!

UPDATE: i got into my obgyn and it was not a cyst. It's worse.