I had my last period aug 6th. I started my new bc pills the Sunday aug 12, I haven’t had a period for about a month. I missed about 4 active pills So I had sex w/0 a condom on oct 10th, this morning I went to the restroom and I looked after I wiped and I’m bleeding not too much and it’s brownish, is this implantation bleeding or can this be my actually period starting? How long should implantation bleeding last? When can I test? Having mild cramping/dizzy. HELP!!