White Dress??

Hey do you guys think i can still get married in white? Ive been with my fiance for 3 years already we had sex already and live together before marriage he is my first boyfriend and the first person i had sex with but a pastor told us we can not get married in white or by church i understand i cant by church since we are all ready baptized but my main concern is not being able to have a white dress for my party, if you know where in the bible it states i cant wear white please let me know or just leave your opinions thanks 😘