I have been on the depo shot for 3+ years, recently diagnosed with cervical cancer as well. I still normally got my period every month recently I had been having unprotected sex with my partner for 2+ months where he ejaculates into me at least 2-3 times a night. I missed my period recently. I am very tired and I have an appetite but I don't want to eat really unless it's something I'm craving, I have been having mood swings, headaches, as well as back pains. These are similar symptoms to my first pregnancy. I am due for my shot dec 27-beginning of January but is it possible I could be pregnant?