Am i pregnant or coming off bc still affecting... af no show

Hi ladies, i have a problem. Now i have always been regular but during this time last year (when i went on the road with ex) came back in mid feb. i notice that my period had started acting up so from feb to april i had a period but it wasn't my normal flow, heck i barely had a flow at all which cause me to think i was pregnant so took test after test and all were neg. So i became frustrated and called my GYN/OB so i went in told her my situation she told me that i could be going through perimenopause so she took blood test to make sure i wasn't and everything came out ok. So she put me on bc for three months (May, June, July) had a normal period Aug19, nothing in Sept,(took hpt Oct1st and it was -) came on again Oct17, and Nov14, and now i was due on the 16th or around that time according on here my aver. cycle is 32days and now i'm on cd43 so i guessing this is another long cycle for which my body is still off track because of bc. What do you ladies think? I have never been like this i was on bc for five years got preg three months after so is pills still affecting me or what or could i be preg???