... tommorow. My question is , I got the shot 3days after my period , then had unprotected sex 27hours after I got the shot. I had irregular bleeding but this month it was just one drop and it dissapeared, OMG can I be pregnant . I am so paranoid to go and take a test.. The nurse just gave me the shot she did not explain anything I'm so scared I don't want a baby..4 days after the shot I started spotting and that carried on for two weeks. Then the next mont very light for a week and a half and this month one day ... Please help with info... I have breast tenderness , and I feel nausies, I'm so worried