Conceiving after Depo, did it happen?

Hello! I have been on depo for over two years and decided not to get my shop for March since we are TTC. Question is has anyone got pregnant right after the shot? How did you know if it was pregnancy or side effects from coming off depo. I have had so many pregnancy symthoms but my next period shouldn't but until the 14th. Just curious if anyone has conceived since I heard it usually takes 6 months or longer. 
Thanks!!! 😊