Last year i had the contraceptive injection for 6 months, then 4 months later i had the pill for a month and then stopped because i was having periods and wanted go them back to normal, so ihaven'tt been taking any birth control since december 2008.

I havnt had a proper period since i started my injection back in late 2007, ive had iregular bleeding and thats it.

Last night i had sex and didnt use a condom, could i still be pregnant even thought i havnt been having proper periods for over a year? and whats the chances of me being pregnant?