I have been on the depot depot shot for about two and a half years and was supposed to get it on the firts of this month and didn't BC my doctor is putting me on pills on October first so she said to wait a month and let the shot get out of my system completely. I wasn't thinking and had unprotected sex on the day before I was supposed to take the shot. I've been feeling light headed and nauseous and very fatigued. I'm having mood swings and headaches. Physically drained as well and haven't done anything to be that way. Is it possible I'm pregnant? Kinda nervous and scared