what wedding garment to wear for a busty brides

Hello mommies.
Hubby and I are trying for our second child, we had sex on the week I was ovulating. Four days before my period I notice light red spotting in the morning but the rest of the day it was a brown color (this has been going for four dais already). Also, if I'm laying down on my stomach I feel pressure in my lower abdomen. Finally, I have been getting "morning sickness"... my question is, can implantation Bleeding last more that 3 days??? Has this ever happened to any of you guys??? what wedding garment to wear for a busty brides
Thanks Mommies