im 15 years old and i just had sex with my boyfriend i have a ulcer type saw in my vagina and i dont know what to do, my mum does not know that i am sexually active and i do not plan on telling her. it burns when i pee and often gets very itchy. i did have unprotected sex but i know for a fact that he doesnt have anything. and it was my first time so i dont have anything either. im really scared and worried my lymph nodes are also swollen and very sore :( PLEASE HELP ME!!!i do not know what to do please help me.