Really confused please help

Alright so I missed a lot of pills this month, had sex, (I know stupid) started my placebo week, about two days in had brownish tinged discharge, the next day bled brown and some red for like 3 hours, the day after that only had two spots of blood, and then some very light rusty pink colored spotting. 
Usually my periods on the pill are on and off like that, but there's at least one full day of bleeding, and it lasts for 5 days, not 2. 
I don't know whether or not I should still consider pregnancy as an option, because I barely had any bleeding, just weird sporting. Out of the two days there was only like 3 or 4 hours tops of any actual bleeding and most of it was brown. 
Should I take a test? Or should I just consider that my period and it's just weird because I missed pills?