Help!!!!

Was suppose to cam on my af 5/29 no period then 5/30 light small cramps and like a little burning in my abdominal . Now 5/31 only light blood when I went to piss and wiped and went to piss again 30-1hour later and wiped it was dark brown on tissue not heavy at all just same as it was when I wiped the first time just dark brown spots . What should I do what's going on ttc #2. Is this implantation should I test