Could i be pregnant? yes or no ?

Was on the pill for 2 months had normal period the next month..I am now 11 days late...an always regular..I've heard the pill can increase fertility...although my partner and I use condoms...I have had tenderness last 2 weeks an feels as tho my period is coming ...I had light spotting one day...feeling nauseous ..headaches and more frequent urination especially of a night time when trying to sleep...I am yet to take a test...when is the right time..........my partner and I wouldn't mind if I were pregnant it would just be unplanned...