Please help me

Ever since I had my first sex,i have been getting wet under i don't know why,also white particles come out from my V. also it itches at times in d hole where d prick enters like I want to have sex again but I don't want to cos the first sex was not something I wanted. The person I had the first sex with I am his first so I don't think it's an infection cos he also never had sex before.

PLS HELP ME WHATS WRONG?