Hi, My Periods Are Already Delayed Naturally. I Bleed For

Hi, my periods are already delayed naturally. I bleed for six days during my period. Today is Monday and I am supposed to travel this Saturday to meet my boyfriend. I don't want periods to occur during or even 2-3 days before Saturday. Can I take Norethisterone now to delay my periods? Also can I take an ipill while am taking Norethisterone dose? Like on the same days??