I was on the depo shot and I miss my appointment and I know that when you miss a appointment you have to start your cycle before you can get back on the shot. I started my cycle and called my doctors office and made a appointment to get back on the shot. But a week later after me and my boyfriend had unprotected sex I started spotting and have been for 2 days now after intercourse. I know a mans sperm can live inside a woman up to 5 days. Could I get pregnant even on the depo shot if I am spotting having unprotected sex?