Hy I was using the injection method for prevention last year 2014 from the month of July but I did not go 4 my november appointment till now. On the 19 of Feb 2015 I had unprotected sex and he spermed inside me. Could I be pregnant coz the information about the injection method says its lasts a whole year before ur system goes back 2 normal. Plz help am so confused and scared