Pac-Man
please dont quote non-existent HALACHOS on a public website.
yes, the Halacha is a married woman covers her hair –
BUT concerning a Kallah the day of the wedding, it is steeped in MINHAG and as has correctly been written, some say before the Chuppa, some say after and some say only the next morning without going into the reasoning in this public forum.
and for your info, some say a Besulah MAY NOT cover her hair before the Chuppa so that all will see she is a besulah.
the issue here is Minhag/Chumrah and NOT halacha.