Patient: I have been on the Depro-Provera Injection for almost 6 years. My last injection was due to be given on the 15th November but I did not get it until the 1st December. I know you have to use extra precaution for up to 2 weeks after the injection if it is given after the 89 days. I had unprotected sex on the 21st December and I now have myself in a major panic that I could be pregnant. Is it possible that I am?